Display screen and electronic device

Abstract

The present application discloses a display screen and an electronic device, belonging to the technical field of display screens. The display screen includes: a display layer, a first light source layer, and a second light source layer; the display layer, the first light source layer, and the second light source layer are stacked, and the first light source layer is located between the display layer and the second light source layer. A reflection layer group is provided on the first light source layer, and the reflection layer group reflects part of the light of the first light source layer and / or part of the light of the second light source layer. The light emitted by the first light source layer is directed towards the display layer, and the light emitted by the second light source layer is directed towards the display layer. In the embodiments of the present application, by providing the first light source layer and the second light source layer, and stacking the first light source layer and the second light source layer, the first light source layer and the second light source layer can simultaneously transmit light to the display screen, increasing the display brightness of the display layer to improve the display brightness of the display screen.

Description

Technical Field

[0001] This application belongs to the technical field of display screens, and particularly relates to a display screen and an electronic device. Background Art

[0002] With the development of technology, electronic devices are more and more widely used. For example, electronic devices such as VR devices, AR devices, and mobile phones have been widely used. Generally, a display screen is provided on an electronic device for display. In related technologies, the display screen includes a display layer and a light source layer, and the display layer and the light source layer are stacked, and the light generated by the light source layer is transmitted to the display layer. However, in related technologies, the display layer receives less light, and the display brightness of the display layer is relatively low, thereby making the display brightness of the display screen relatively low. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide a display screen and an electronic device, which can solve the problem that the display brightness of the display layer is relatively low, thereby making the display brightness of the display screen relatively low.

[0004] In a first aspect, the embodiments of this application provide a display screen, which includes: a display layer, a first light source layer, and a second light source layer;

[0005] The display layer, the first light source layer, and the second light source layer are stacked, and the first light source layer is located between the display layer and the second light source layer;

[0006] A reflection layer group is provided on the first light source layer, and the reflection layer group reflects the light of the first light source layer and / or the light of the second light source layer. The light emitted by the first light source layer is directed to the display layer, and the light emitted by the second light source layer is directed to the display layer.

[0007] In a second aspect, the embodiments of this application provide an electronic device, which includes the display screen described in the first aspect above.

[0008] In the embodiment of the present application, since the display layer, the first light source layer, and the second light source layer are stacked, and the first light source layer is located between the second light source layers, the first light source layer and the second light source layer can emit light simultaneously. As a result, the first light source layer and the second light source layer will simultaneously transmit light to the display layer, increasing the amount of light received by the display screen, thereby increasing the display brightness of the display layer and further increasing the display brightness of the display screen. In addition, a reflection layer group is provided on the first light source layer, so that part of the light emitted by the first light source layer and the light emitted by the second light source layer will be reflected by the reflection layer group, avoiding the problem that the light irradiates the thin-film transistors in the display layer and affects the display of the display layer. That is, in the embodiment of the present application, by providing the first light source layer and the second light source layer, and stacking the first light source layer and the second light source layer, the first light source layer and the second light source layer can simultaneously transmit light to the display screen, increasing the display brightness of the display layer to improve the display brightness of the display screen. Moreover, the presence of the reflection layer group prevents light from irradiating the thin-film transistors in the display layer, that is, the light only irradiates the positions in the display layer other than the thin-film transistors, increasing the brightness of the display layer and improving the display effect of the display layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 FIG. shows a schematic diagram of a display screen provided by an embodiment of the present application.

[0010] REFERENCE SIGNS:

[0011] 10: display layer; 20: first light source layer; 30: second light source layer; 11: light-transmitting substrate; 12: light-transmitting cover plate; 13: thin-film transistor; 14: black matrix; 15: liquid crystal molecules; 21: light-emitting element; 22: light guide; 23: first reflection layer; 24: second reflection layer; 31: optical film; 32: light-emitting body; 100: reflection layer group. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] The terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the associated objects before and after.

[0013] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0014] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0015] Referring to Figure 1 , a schematic diagram of a display screen provided by an embodiment of the present application is shown. As Figure 1 shown, the display screen includes: a display layer 10, a first light source layer 20, and a second light source layer 30. The display layer 10, the first light source layer 20, and the second light source layer 30 are stacked, and the first light source layer 20 is located between the display layer 10 and the second light source layer 30. A reflection layer group 100 is provided on the first light source layer 20. The reflection layer group 100 reflects part of the light of the first light source layer 20 and / or part of the light of the second light source layer 30. The light emitted by the first light source layer 20 is incident on the display layer 10, and the light emitted by the second light source layer 30 is incident on the display layer 10.

[0016] In the embodiment of the present application, since the display layer 10, the first light source layer 20, and the second light source layer 30 are stacked, and the first light source layer 20 is located between the second light source layer 30, the first light source layer 20 and the second light source layer 30 can emit light simultaneously. As a result, the first light source layer 20 and the second light source layer 30 will simultaneously transmit light to the display layer 10, and the display screen receives more light, thereby increasing the display brightness of the display layer 10 and further increasing the display brightness of the display screen. In addition, a reflective layer group 100 is provided on the first light source layer 20, so that part of the light emitted by the first light source layer 20 and the light emitted by the second light source layer 30 will be reflected by the reflective layer group 100, avoiding the problem that the light irradiates the thin film transistors in the display layer 10 and affecting the display of the display layer 10. That is to say, in the embodiment of the present application, by providing the first light source layer 20 and the second light source layer 30, and stacking the first light source layer 20 and the second light source layer 30, the first light source layer 20 and the second light source layer 30 can simultaneously transmit light to the display screen, increasing the display brightness of the display layer 10 to improve the display brightness of the display screen. Moreover, the presence of the reflective layer group 100 prevents light from irradiating the thin film transistors in the display layer 10, that is, the light only irradiates the positions in the display layer 10 other than the thin film transistors, increasing the brightness of the display layer 10 and improving the display effect of the display layer 10.

[0017] In the prior art, the display screen includes a display layer 10 and a light source layer. The display layer 10 and the light source layer are stacked, and the light emitted by the light source layer is transmitted to the display layer 10. However, the display layer 10 receives less light, resulting in a lower display brightness of the display layer 10 and further a lower display brightness of the display screen. In the embodiment of the present application, by providing the first display layer 10 and the second display layer 10, the light emitted by the first display layer 10 and the second display layer 10 can be transmitted to the display layer 10, so that the display layer 10 receives more light and the display brightness of the display layer 10 increases.

[0018] In addition, in some embodiments, the display layer 10 may include a light-transmissive substrate 11, a light-transmissive cover plate 12, and thin-film transistors 13. The light-transmissive substrate 11 and the light-transmissive cover plate 12 are stacked, and the light-transmissive substrate 11 is located between the first light source layer 20 and the light-transmissive cover plate 12. The thin-film transistors 13 are disposed on the surface of the light-transmissive substrate 11 facing the light-transmissive cover plate 12. The first light source layer 20 may include a light-emitting element 21 and a light guide member 22. The reflection layer group 100 may include a first reflection layer 23. The light guide member 22 is stacked with the light-transmissive substrate 11 and the second light source layer 30 respectively. The light-emitting element 21 is located on one side of the light guide member 22, and the light-emitting end of the light-emitting element 21 faces the light guide member 22. The first reflection layer 23 is disposed on the surface of the light guide member 22 facing the light-transmissive substrate 11, and in the direction from the light-transmissive substrate 11 to the light guide member 22, the first reflection layer 23 is opposite to the thin-film transistors 13 in position. The light emitted by the light-emitting element 21 is directed to the display layer 10 after passing through the light guide member 22, and the light emitted by the second light source layer 30 is directed to the display layer 10 after passing through the light guide member 22.

[0019] Generally, the thin film transistor 13 has an active layer. In the prior art, the display screen includes a display layer and a light source layer. The display layer 10 and the light source layer are stacked. The light emitted by the light source layer is transmitted to the display layer 10. The display layer 10 includes a light-transmitting substrate 11, a light-transmitting cover plate 12, and a thin film transistor 13. The light-transmitting substrate 11 and the light-transmitting cover plate 12 are stacked, and the light-transmitting substrate 11 is located between the first light source layer 20 and the light-transmitting cover plate 12. The thin film transistor 13 is disposed on the surface of the light-transmitting substrate 11 facing the light-transmitting cover plate 12. Thus, when the light source layer emits light, the light will irradiate on the active layer of the thin film transistor 13, resulting in a change in the carrier mobility of the active layer and causing a serious display crosstalk phenomenon, that is, the display effect of the display layer 10 will be affected. In the embodiment of the present application, the light guide member 22 is stacked with the light-transmitting substrate 11 and the second light source layer 30 respectively. The light emitting member 21 is located on one side of the light guide member 22, and the light emitting end of the light emitting member 21 faces the light guide member 22. Thus, the light emitted by the light emitting member 21 can be transmitted to the light guide member 22, and the light guide member 22 transmits the light to the light-transmitting substrate 11, so that the display layer 10 receives the light. In addition, the light emitted by the second light source layer 30 will also be transmitted to the light guide member 22 and then transmitted to the display layer 10, so that the display layer 10 receives more light. In addition, the first reflection layer 23 is disposed on the surface of the light guide member 22 facing the light-transmitting substrate 11, and in the direction from the light-transmitting substrate 11 to the light guide member 22, the first reflection layer 23 is opposite to the thin film transistor 13 in position. Therefore, whether it is the light emitted by the light emitting member 21 or the light emitted by the second light source layer 30, once the light enters the light guide member 22, when the light is transmitted to the first reflection layer 23, the light will be reflected, avoiding the light passing through the light-transmitting substrate 11 and irradiating on the thin film transistor 13, and then irradiating on the active layer of the thin film transistor 13, and the problem of the change in the carrier mobility of the active layer can be avoided, so that the problem of display crosstalk can be avoided, and the display effect of the display layer 10 can be improved.

[0020] It should be noted that both the light-transmitting substrate 11 and the light-transmitting cover plate 12 can be formed of glass plates. Of course, the light-transmitting substrate 11 and the light-transmitting cover plate 12 can also be formed of other light-transmitting materials. For example, the light-transmitting substrate 11 and the light-transmitting cover plate 12 are formed of resin. In this regard, the embodiment of the present application does not make any limitation here.

[0021] In addition, in the embodiment of the present application, the second light source layer 30 may include an optical film 31 and a light emitter 32. The optical film 31 and the light emitter 32 are stacked, and the optical film 31 is close to the light guide member 22, and the light emitter 32 is far from the light guide member 22. Among them, the light emitter 32 may be an organic light emitting diode. Of course, the light emitter 32 may also be other devices that can emit light. In this regard, the embodiment of the present application does not make any limitation here.

[0022] In addition, the light-emitting component 21 can be an organic light-emitting diode. Of course, the light-emitting component 21 can also be other devices that can emit light. In this regard, the embodiments of the present application do not limit this here.

[0023] In addition, in some embodiments, the number of thin-film transistors 13 is multiple. The multiple thin-film transistors 13 are evenly distributed on the surface of the light-transmitting substrate 11 facing the light-transmitting cover plate 12, and the distance between two adjacent thin-film transistors 13 is L1. The number of the first reflection layers 23 is multiple. The multiple first reflection layers 23 are evenly distributed on the surface of the light guide member 22 facing the light-transmitting substrate 11, and the distance between two adjacent first reflection layers 23 is L2. L1 and L2 satisfy: L1 ≤ L2 ≤ 1.2L1. Among them, in the direction from the light-transmitting substrate 11 to the light guide member 22, the first reflection layers 23 and the thin-film transistors 13 are arranged in one-to-one correspondence. Through such an arrangement, it can be ensured that each thin-film transistor 13 corresponds to a first reflection layer 23. Thus, after the light-emitting component 21 emits light, each thin-film transistor 13 can be protected by the first reflection layer 23, avoiding the light of the light-emitting component 21 from being transmitted into the active layer of the thin-film transistor 13.

[0024] In addition, in some embodiments, the reflection layer group 100 may further include a second reflection layer 24. The second reflection layer 24 is disposed on the surface of the light guide member 22 facing away from the light-transmitting substrate 11, and in the direction from the light-transmitting substrate 11 to the light guide member 22, the second reflection layer 24 and the first reflection layer 23 are relatively positioned.

[0025] By providing the second reflection layer 24, after the second light source layer 30 emits light, once the light of the second light source layer 30 irradiates on the second reflection layer 24, the light will be reflected, thereby avoiding the light that enters the second light source layer 30 at the position on the surface of the light guide member 22 facing away from the light-transmitting substrate 11 and opposite to the position of the thin-film transistor 13, and further avoiding the light from irradiating on the active layer of the thin-film transistor 13. That is, by providing the second reflection layer 24, the display effect of the display layer 10 can be improved.

[0026] In addition, in some embodiments, the number of thin film transistors 13 is multiple, and the multiple thin film transistors 13 are evenly distributed on the surface of the light-transmissive substrate 11 facing the light-transmissive cover plate 12, and the distance between two adjacent thin film transistors 13 is L1. The number of the second reflective layers 24 is multiple, and the multiple second reflective layers 24 are evenly distributed on the surface of the light guide 22 facing away from the light-transmissive substrate 11, and the distance between two adjacent second reflective layers 24 is L3. L1 and L3 satisfy: 0.8L1 ≤ L3 ≤ L1. Among them, in the direction from the light-transmissive substrate 11 to the light guide 22, the second reflective layers 24 are arranged in one-to-one correspondence with the thin film transistors 13. Through such an arrangement, it can be ensured that each thin film transistor 13 corresponds to a second reflective layer 24. Thus, after the second light source layer 30 emits light, each thin film transistor 13 can be protected by the second reflective layer 24, avoiding the problem that the light of the second light source layer 30 is transmitted into the active layer of the thin film transistor 13.

[0027] In addition, in some embodiments, the reflectivity of the first reflective layer 23 is greater than or equal to 90%, the reflectivity of the second reflective layer 24 is greater than or equal to 90%, the transmittance of the first reflective layer 23 is less than or equal to 10%, and the transmittance of the second reflective layer 24 is less than or equal to 10%.

[0028] Through such an arrangement, the first reflective layer 23 can have a high reflectivity and a low transmittance, so that the first reflective layer 23 can reflect more light, avoiding the problem that the light transmitted from the light-emitting element 21 to the light guide 22 passes through the first reflective layer 23 and irradiates on the active layer of the thin film transistor 13, thereby improving the display effect of the display layer 10. Similarly, the second reflective layer 24 can also have a high reflectivity and a low transmittance, so that the second reflective layer 24 can reflect more light, avoiding the problem that the light of the second light source layer 30 passes through the second reflective layer 24, and then passes through the light guide 22 and the first reflective layer 23 and irradiates on the active layer of the thin film transistor 13, thereby improving the display effect of the display layer 10.

[0029] It should be noted that the reflectivity of the first reflective layer 23 can be any value greater than or equal to 90%. For example, the reflectivity of the first reflective layer 23 is 90%. For another example, the reflectivity of the first reflective layer 23 is 92%. For another example, the reflectivity of the first reflective layer 23 is 96%. For another example, the reflectivity of the first reflective layer 23 is 96%. In addition, the transmittance of the first reflective layer 23 can be any value less than or equal to 10%. For example, the transmittance of the first reflective layer 23 is 10%. For another example, the transmittance of the first reflective layer 23 is 8%. For another example, the transmittance of the first reflective layer 23 is 6%. For another example, the transmittance of the first reflective layer 23 is 4%. In addition, the reflectivity of the second reflective layer 24 can be any value greater than or equal to 90%. For example, the reflectivity of the second reflective layer 24 is 90%. For another example, the reflectivity of the second reflective layer 24 is 92%. For another example, the reflectivity of the second reflective layer 24 is 96%. For another example, the reflectivity of the second reflective layer 24 is 96%. In addition, the transmittance of the second reflective layer 24 can be any value less than or equal to 10%. For example, the transmittance of the second reflective layer 24 is 10%. For another example, the transmittance of the second reflective layer 24 is 8%. For another example, the transmittance of the second reflective layer 24 is 6%. For another example, the transmittance of the second reflective layer 24 is 4%.

[0030] In addition, in some embodiments, the thickness range of the first reflective layer 23 is from 1 micron to 10 microns, and the thickness range of the second reflective layer 24 is from 1 micron to 10 microns.

[0031] Through such a setting, the influence of the first reflective layer 23 and the second reflective layer 24 on the thickness of the display screen can be made smaller, which is beneficial to the thinning and lightening of the display screen.

[0032] It should be noted that the thickness of the first reflective layer 23 can be any value from 1 micron to 10 microns. For example, the thickness of the first reflective layer 23 is 1 micron. For another example, the thickness of the first reflective layer 23 is 3 microns. For another example, the thickness of the first reflective layer 23 is 5 microns. For another example, the thickness of the first reflective layer 23 is 7 microns. For another example, the thickness of the first reflective layer 23 is 9 microns. For another example, the thickness of the first reflective layer 23 is 10 microns. The thickness of the second reflective layer 24 can be any value from 1 micron to 10 microns. For example, the thickness of the second reflective layer 24 is 1 micron. For another example, the thickness of the second reflective layer 24 is 3 microns. For another example, the thickness of the second reflective layer 24 is 5 microns. For another example, the thickness of the second reflective layer 24 is 7 microns. For another example, the thickness of the second reflective layer 24 is 9 microns. For another example, the thickness of the second reflective layer 24 is 10 microns.

[0033] Of course, the thickness of the first reflective layer 23 can also be other values. For example, the thickness of the first reflective layer 23 is 0.5 micrometers. For another example, the thickness of the first reflective layer 23 is 12 micrometers. The embodiments of the present application do not limit the specific value of the thickness of the first reflective layer 23. In addition, the thickness of the second reflective layer 24 can also be other values. For example, the thickness of the second reflective layer 24 is 0.5 micrometers. For another example, the thickness of the second reflective layer 24 is 12 micrometers. The embodiments of the present application do not limit the specific value of the thickness of the second reflective layer 24.

[0034] In addition, in some embodiments, the projection of the thin film transistor 13 on the surface of the light-transmissive substrate 11 facing the light-transmissive cover plate 12 is located within the projection of the second reflective layer 24 on the surface of the light-transmissive substrate 11 facing the light-transmissive cover plate 12.

[0035] With such an arrangement, once the second light source layer 30 emits light, after the light is transmitted to the second reflective layer 24, it will be reflected by the second reflective layer 24, preventing the light of the second light source layer 30 from being transmitted into the active layer of the thin film transistor 13. That is, by making the projection of the thin film transistor 13 on the surface of the light-transmissive substrate 11 facing the light-transmissive cover plate 12 located within the projection of the second reflective layer 24 on the surface of the light-transmissive substrate 11 facing the light-transmissive cover plate 12, it can be ensured that the light of the second light source layer 30 will not be transmitted into the active layer of the thin film transistor 13.

[0036] In addition, in some embodiments, the projection of the first reflective layer 23 on the surface of the light-transmissive substrate 11 facing the light-transmissive cover plate 12 is located within the projection of the second reflective layer 24 on the surface of the light-transmissive substrate 11 facing the light-transmissive cover plate 12, and in the direction from the light guide member 22 to the light-transmissive substrate 11, the area of the first reflective layer 23 is smaller than the area of the second reflective layer 24. With such an arrangement, after the light emitted by the light emitting member 21 is transmitted into the light guide member 22, during the transmission of the light in the light guide member 22, the light can be reflected by the second reflective layer 24, causing more light to be directed towards the light-transmissive substrate 11 and improving the brightness of the display screen.

[0037] In addition, in some embodiments, the transmittance of the light guide member 22 is greater than or equal to 88%, and the refractive index of the light guide member 22 is greater than or equal to 1.45. With such an arrangement, it can be ensured that the light guide member 22 has a high transmittance and a high refractive index, enabling the light guide member 22 to transmit the light of the light emitting member 21 and the light of the second light source layer 30 well.

[0038] It should be noted that in the embodiments of the present application, the light guide member 22 can have a light homogenizing effect, that is, after the light enters the light guide member 22, the light can be transmitted in the light guide member 22 and is evenly dispersed in the light guide member 22. In addition, in the embodiments of the present application, the material of the light guide member 22 can include but is not limited to glass, polycarbonate, polymethyl methacrylate, etc.

[0039] In addition, in the embodiments of the present application, the area of the projection of the light guide member 22 on the second light source layer 30 can be equal to the area of the projection of the light transmissive substrate 11 on the second light source layer 30, so that the light guide member 22 can transmit as much light as possible to the light transmissive substrate 11, that is, to the display layer 10.

[0040] In the embodiments of the present application, since the display layer 10, the first light source layer 20, and the second light source layer 30 are stacked, and the first light source layer 20 is located between the second light source layers 30, the first light source layer 20 and the second light source layer 30 can emit light simultaneously. As a result, the first light source layer 20 and the second light source layer 30 will transmit light to the display layer 10 at the same time, and the amount of light received by the display screen increases, thereby increasing the display brightness of the display layer 10 and further increasing the display brightness of the display screen. In addition, a reflection layer group 100 is provided on the first light source layer 20, so that part of the light emitted by the first light source layer 20 and the light emitted by the second light source layer 30 will be reflected by the reflection layer group 100, avoiding the problem that the light irradiates the thin film transistors in the display layer 10 and affecting the display of the display layer 10. That is to say, in the embodiments of the present application, by providing the first light source layer 20 and the second light source layer 30, and the first light source layer 20 and the second light source layer 30 are stacked, the first light source layer 20 and the second light source layer 30 can transmit light to the display screen at the same time, increasing the display brightness of the display layer 10 to improve the display brightness of the display screen. Moreover, the presence of the reflection layer group 100 prevents the light from irradiating the thin film transistors in the display layer 10, that is, the light only irradiates the positions in the display layer 10 other than the thin film transistors, increasing the brightness of the display layer 10 and improving the display effect of the display layer 10.

[0041] The embodiments of the present application provide an electronic device, which includes the display screen in any one of the above embodiments.

[0042] It should be noted that in the embodiments of the present application, the electronic device includes but is not limited to devices such as a controller, a smart device, and a terminal product. Among them, the smart device is, for example, a smart phone, a smart TV, a smart speaker, a smart robot, a VR device, an AR device, an XR device, etc., and the terminal product includes products such as a personal computer and a tablet computer.

[0043] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0044] Although the embodiments of this application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of this application, and the scope of this application is defined by the claims and their equivalents.

Claims

1. A display screen, characterized in that, The display screen includes: a display layer, a first light source layer, and a second light source layer; The display layer, the first light source layer, and the second light source layer are stacked, and the first light source layer is located between the display layer and the second light source layer; A reflection layer group is provided on the first light source layer. The reflection layer group reflects some light of the first light source layer and / or some light of the second light source layer. The light emitted by the first light source layer is directed towards the display layer, and the light emitted by the second light source layer is directed towards the display layer; The display layer includes thin film transistors. The first light source layer includes a light emitting element and a light guiding element. The reflection layer group includes a first reflection layer and a second reflection layer. The light guiding element is stacked with the display layer and the second light source layer respectively. The light emitting element is located on one side of the light guiding element, and the light emitting end of the light emitting element faces the light guiding element. The first reflection layer is provided on the surface of the light guiding element facing the display layer, and the second reflection layer is provided on the surface of the light guiding element facing away from the display layer. In the direction from the display layer to the light guiding element, the second reflection layer and the first reflection layer are relatively positioned; The light emitted by the light emitting element is directed towards the display layer after passing through the light guiding element, and the light emitted by the second light source layer is directed towards the display layer after passing through the light guiding element; The number of the thin film transistors is multiple and they are arranged at equal intervals, and the distance between two adjacent thin film transistors is L1. The number of the first reflection layers is multiple and they are arranged at equal intervals, and the distance between two adjacent first reflection layers is L2. L1 and L2 satisfy: L1≤L2≤1.2L1; Wherein, in the direction from the glass substrate to the light guiding element, the first reflection layer and the thin film transistor are arranged in one-to-one correspondence.

2. The display screen according to claim 1, characterized in that, The display layer further includes a light transmissive substrate and a light transmissive cover plate. The light transmissive substrate and the light transmissive cover plate are stacked, and the light transmissive substrate is located between the first light source layer and the light transmissive cover plate. The thin film transistors are provided on the surface of the light transmissive substrate facing the light transmissive cover plate.

3. The display screen according to claim 1, characterized in that The number of the second reflection layers is multiple, and the multiple second reflection layers are equally spaced on the surface of the light guiding element facing away from the light transmissive substrate, and the distance between two adjacent second reflection layers is L3. L1 and L3 satisfy: 0.8L1≤L3≤L1; Wherein, in the direction from the light transmissive substrate to the light guiding element, the second reflection layer and the thin film transistor are arranged in one-to-one correspondence.

4. The display screen according to claim 1, wherein The reflectivity of the first reflection layer is greater than or equal to 90%, the reflectivity of the second reflection layer is greater than or equal to 90%, the transmittance of the first reflection layer is less than or equal to 10%, and the transmittance of the second reflection layer is less than or equal to 10%.

5. The display screen according to claim 1, characterized in that, The thickness range of the first reflection layer is from 1 micron to 10 microns, and the thickness range of the second reflection layer is from 1 micron to 10 microns.

6. The display screen according to claim 1, characterized in that, The projection of the thin film transistor on the surface of the light transmissive substrate facing the light transmissive cover plate is located within the projection of the second reflection layer on the surface of the light transmissive substrate facing the light transmissive cover plate.

7. The display screen according to claim 1, characterized in that The light transmissivity of the light guide member is greater than or equal to 88%, and the refractive index of the light guide member is greater than or equal to 1.

45.

8. An electronic device, characterized in that, The electronic device includes the display screen according to any one of claims 1-7.

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