TW202040236A - Display panel and electronic device using the same - Google Patents

Abstract

A display panel includes a light source substrate and a reflective plate. The reflector is disposed on a side of the light source substrate and spaced apart from the light source substrate. The light source substrate includes a transparent substrate, a plurality of light emitting units, and a plurality of diffusion grooves. The surface of the transparent substrate forms the plurality of diffusion grooves recessed into the transparent substrate. The plurality of light emitting units are disposed on a surface of the transparent substrate. The plurality of diffusion grooves are disposed on a surface of the light source substrate opposite to the reflection plate. The plurality of light emitting units are disposed on a surface of the light source substrate facing the reflective plate. At least one of the light emitting units is disposed in one of the diffusion grooves. The invention also provides an electronic device using the display panel.

Description

Display panel and electronic device using the display panel

The present invention relates to the field of display, in particular to a display panel and an electronic device using the display panel.

In the existing display panels, common backlight technologies include direct-lit backlight and side-oriented backlight. No matter which kind of backlight requires a large-thick backlight module, it is limited by the internal space of the current increasingly thinner and lighter display panels. The backlight scattering is not sufficient, and the luminosity is often not uniform enough. How to design a display panel with a smaller thickness and higher light uniformity is a consideration for those skilled in the art.

In view of this, the present invention provides a display panel having better light uniformity and a smaller thickness.

In addition, an electronic device using the display panel is also provided.

A display panel includes a light source substrate and a reflector. The reflector is arranged on one side of the light source substrate and spaced apart from the light source substrate. The light source substrate includes a transparent substrate, a plurality of light emitting units, and a plurality of diffusers. Groove, the surface of the transparent substrate is formed with the plurality of diffusion grooves recessed into the transparent substrate, the plurality of light-emitting units are arranged on the surface of the transparent substrate, and the plurality of diffusion grooves are arranged on the The surface of the light source substrate opposite to the reflecting plate, the multiple light emitting units are arranged on the surface of the light source substrate facing the reflecting plate, and at least one light emitting unit is arranged in one of the diffusion grooves.

Further, each of the light-emitting units is arranged in one of the diffusion grooves.

Further, at least a part of the surface of the diffusion groove close to the light-emitting unit is provided with a diffusion layer, and the diffusion layer can refract, reflect or scatter light.

Further, the diffusion layer is a multilayer film structure, the diffusion layer can change the direction of light emitted by the light-emitting unit, so that the light emitted by the light-emitting unit is directed toward the reflector, and the diffusion layer allows the The light emitted from the reflector to the light source substrate passes through.

Further, the shape of the opening of the diffusion tank is a part of a sphere, a cone, and a cubic cone, and the light-emitting unit is arranged at the lowest point of the diffusion tank.

Further, the display panel further includes a composite optical layer disposed on a side of the light source substrate away from the reflecting plate, and the composite optical layer includes a retardation film, and a super-macro multi-crystal structure to enhance brightness At least one of a film, a reflective polarization enhancement film, a diffusion film, and a diffusion film.

Further, the display panel further includes a color conversion layer including at least one of a quantum dot material or a fluorescent material, and the color conversion layer is disposed between the composite optical layer and the light source substrate between.

Further, the display panel further includes a color conversion layer including at least one of a quantum dot material or a fluorescent material, and the color conversion layer is disposed between the reflector and the light source substrate .

Further, the display panel further includes a plurality of color conversion units, the color conversion units include at least one of a quantum dot material or a fluorescent material, and one color conversion unit covers one light-emitting unit that is not connected to the The surface in contact with the transparent substrate.

An electronic device, the electronic device includes a display panel, the display panel includes a light source substrate and a reflector, the reflector is arranged on one side of the light source substrate and spaced apart from the light source substrate, the light source substrate includes A transparent substrate, a plurality of light-emitting units, and a plurality of diffusion grooves, the surface of the transparent substrate forms the plurality of diffusion grooves recessed into the transparent substrate, and the plurality of light-emitting units are arranged on the transparent substrate The plurality of diffusion grooves are arranged on the surface of the light source substrate opposite to the reflecting plate, the plurality of light emitting units are arranged on the surface of the light source substrate away from the display window of the display panel, at least one The light-emitting unit is arranged in one of the diffusion grooves.

In the display panel of the present invention, the light emitted by the light-emitting unit can be effectively scattered in a small space by arranging the diffusion grooves. The relatively arranged light source substrate and reflecting plate further increase the degree of light scattering, and reduce the display panel The thickness of the backlight module improves the light uniformity at the same time.

The drawings show embodiments of the present invention. The present invention can be implemented in many different forms, and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more comprehensive and complete, and to enable those skilled in the art to fully understand the scope of the present invention.

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

First embodiment

Please refer to FIGS. 1 and 2. FIG. 1 is a schematic plan view of a display panel 10 according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the display panel 10 of FIG. 1 along the line II-II.

A display panel 10 includes a light source substrate 11 and a reflecting plate 12, the reflecting plate 12 is arranged on one side of the light source substrate 11 and spaced apart from the light source substrate 11, the light source substrate 11 includes a transparent substrate 111 and a plurality of diffusion grooves 112 And a plurality of light emitting units 113, the surface of the transparent substrate 111 is formed with a plurality of diffusion grooves 112 recessed into the transparent substrate 111, the plurality of light emitting units 113 are arranged on the surface of the transparent substrate 111, and the plurality of diffusion grooves 112 are arranged on the light source substrate 11 and On the opposite surface of the reflector 12, a plurality of light-emitting units 113 are arranged on the surface of the light source substrate 11 facing away from the display window of the display panel 10. The display window is used for displaying images, and the light-emitting units 113 are arranged on the light source substrate 11 facing the reflector 12 The light emitting unit 113 is arranged in the diffusion groove 112 on the surface of the

The material of the transparent substrate 111 can be an inorganic substance, such as silicon dioxide (SiO2); the material of the transparent substrate 111 can also be an organic substance, such as polymethyl methacrylate (PMMA), polyimide ( Polyimide, PI), polyethylene naphthalate two formic acid glycol ester (PEN), polycarbonate (PC) or polyethylene glycol terephthalate (PET) . The transparent substrate 111 can be a flexible material or a non-flexible material. In this embodiment, the transparent substrate 111 is a non-flexible material, and the transparent substrate 111 is polymethylmethacrylate, which has good rigidity and makes the light source substrate 11 Not easy to deform. In other embodiments, the transparent substrate 111 may also be a flexible material (such as PC, PI, or PEN).

A plurality of diffusion grooves 112 are disposed on the surface of the transparent substrate 111. In one embodiment, the diffusion grooves 112 are arranged in a matrix. The light-emitting unit 113 is arranged at the lowest point of the diffusion groove 112. The light source substrate 11 also includes a transparent conductive circuit and a thin film transistor array (not shown). The transparent conductive circuit and the thin film transistor array are disposed on the transparent substrate 111. There is a surface of a light-emitting unit 113, which is electrically connected to the thin film transistor array through the transparent conductive circuit, the transparent conductive circuit may be indium tin oxide (ITO), and the transparent transistor array controls the light emission Unit 113 works. The number of the light emitting unit 113 is multiple, and the light emitting unit 113 may be a micro LED light emitting chip or an organic light emitting diode (OLED).

The shape of the opening of the diffusion groove 112 is a part of a sphere, a cone, and a cubic cone. The diffusion groove 112 has a lowest point, which refers to a point or an area where the diffusion groove 112 is at the greatest distance from the reflector 12. At least part of the surface of the diffusion groove 112 close to the light-emitting unit 113 is provided with a diffusion layer 114, and the diffusion layer 114 can refract, reflect or scatter light. The light emitting unit 113 arranged at the lowest point emits light, and the diffusion layer 114 changes the irradiation angle of the light to further increase the irradiation range of the light emitted by the light emitting unit 113 and make the light uniform. The light emitted by the light-emitting unit 113 directly irradiates or passes through the diffusion layer 114 to change the irradiating direction and then irradiates the reflector 12, and the reflector 12 further changes the direction of the light so that most of the light is directed toward the display window of the display panel 10. , The light is displayed in the display window. The light source substrate 11 and the reflector 12 are spaced apart. There is a gap between the light source substrate 11 and the reflector 12. The light emitted by the light-emitting unit 113 is further reflected on the surface of the reflector 12 after passing through the optical path of the gap. Evenly.

In one embodiment, the diffusion layer 114 may be an optical coating including granular reflective crystals. In other embodiments, the diffusion layer 114 may also have a multilayer film structure. The diffuser layer 114 of the multilayer film structure can change the light emitting unit 113. The direction of light emission is such that the light emitted by the light-emitting unit 113 is directed to the reflector 12, and the diffusion layer 114 of the multilayer film structure allows the light emitted from the reflector 12 to the light source substrate 11 to pass through, that is, the diffusion of the multilayer film structure The layer 114 has a selective light-transmitting ability, which can prevent part of the light from being blocked by the diffusion layer 114 and cannot be irradiated to the display window, thereby further improving the light utilization rate of the display panel 10.

The display panel 10 also includes a composite optical layer 13, which is disposed on the side of the light source substrate 11 away from the reflector 12, and the composite optical layer 13 includes a retardation film, an ultra-macro multi-crystal structure brightness enhancement film, and a reflective polarizer. At least one of brightness enhancement film, diffusion film and scattering film. In one embodiment, the composite optical layer 13 has a single-layer structure, and the composite optical layer 13 is a retardation film, an ultra-macro polycrystalline structure brightness enhancement film, a reflective polarized brightness enhancement film, a diffusion film, and a scattering film. One; In one embodiment, the composite optical layer 13 is a double-layer structure, the composite optical layer 13 includes a retardation film, an ultra-macro multi-crystal structure brightness enhancement film and a reflective polarized brightness enhancement film and a diffusion film And a scattering film; in one embodiment, the composite optical layer 13 includes a three-layer structure, and the composite optical layer 13 is a retardation film, an ultra-macro multi-crystal structure brightness enhancement film, and a reflective polarized brightness enhancement film Two kinds of and one of diffuser and diffuser.

The display panel 10 further includes a color conversion layer 14 disposed between the composite optical layer 13 and the light source substrate 11. The color conversion layer 14 includes at least one of quantum dot materials and fluorescent materials. The color conversion layer 14 can change the color of the light passing through the color conversion layer 14 to meet the display requirements of the display panel 10.

Second embodiment

Please refer to FIGS. 1 and 3. FIG. 1 is a schematic plan view of a display panel 20 according to an embodiment of the present invention. FIG. 3 is a schematic cross-sectional view of the display panel 20 of FIG. 1 along the line II-II.

A display panel 20 includes a light source substrate 21 and a reflecting plate 22. The reflecting plate 22 is arranged on one side of the light source substrate 21 and spaced apart from the light source substrate 21. The light source substrate 21 includes a transparent substrate 211 and a plurality of diffusion grooves 212 And a plurality of light-emitting units 213, the surface of the transparent substrate 211 is formed with a plurality of diffusion grooves 212 recessed into the transparent substrate 211, the plurality of light-emitting units 213 are arranged on the surface of the transparent substrate 211, and the plurality of diffusion grooves 212 are arranged on the light source substrate 21 and On the opposite surface of the reflector 22, a plurality of light-emitting units 213 are arranged on the surface of the light source substrate 21 facing away from the display window of the display panel 20, the display window is used for displaying images, and the multiple light-emitting units 213 are arranged on the light source substrate 21 facing the reflector 22 The light emitting unit 213 is arranged in the diffusion groove 212 on the surface of the

The material of the transparent substrate 211 can be inorganic, such as silicon dioxide (SiO2); the material of the transparent substrate 211 can also be organic, such as polymethyl methacrylate (PMMA), polyimide ( Polyimide, PI), polyethylene naphthalate two formic acid glycol ester (PEN), polycarbonate (PC) or polyethylene glycol terephthalate (PET) . The transparent substrate 211 can be a flexible material or a non-flexible material. In this embodiment, the transparent substrate 211 is a non-flexible material, and the transparent substrate 211 is polymethylmethacrylate, which has good rigidity and makes the light source substrate 21 is not easy to deform. In other embodiments, the transparent substrate 211 may also be a flexible material (such as PC, PI, or PEN).

A plurality of diffusion grooves 212 are disposed on the surface of the transparent substrate 211. In one embodiment, the diffusion grooves 212 are arranged in a matrix. The light-emitting unit 213 is arranged at the lowest point of the diffusion groove 212. The light source substrate 21 further includes a transparent conductive circuit and a thin film transistor array (not shown). The transparent conductive circuit and the thin film transistor array are disposed on the transparent substrate 211. There is a surface of a light-emitting unit 213, which is electrically connected to the thin film transistor array through the transparent conductive circuit, the transparent conductive circuit may be indium tin oxide (ITO), and the transparent transistor array controls the light emission Unit 213 works. The number of the light emitting unit 213 is multiple, and the light emitting unit 213 may be a micro LED light emitting chip or an organic light emitting diode (OLED).

The shape of the opening of the diffusion groove 212 is a part of a spherical shape, a conical shape, or a cubic cone. The diffusion groove 212 has a lowest point, which refers to a point or an area where the diffusion groove 212 is the most distant from the reflector 22. At least part of the surface of the diffusion groove 212 close to the light-emitting unit 213 is provided with a diffusion layer 214, and the diffusion layer 214 can refract, reflect or scatter light. The light emitting unit 213 disposed at the lowest point emits light, and the diffusion layer 214 changes the irradiation angle of the light to further increase the irradiation range of the light emitted by the light emitting unit 213 and the light becomes uniform. The light emitted by the light-emitting unit 213 directly irradiates or passes through the diffusion layer 214 to change the irradiating direction and then irradiates the reflector 22. The reflector 22 further changes the direction of the light so that most of the light is directed toward the display window of the display panel 20 , The light is displayed in the display window. The light source substrate 21 and the reflector 22 are spaced apart. There is a gap between the light source substrate 21 and the reflector 22. The light emitted by the light-emitting unit 213 is further reflected on the surface of the reflector 22 after passing the light path of the gap, making the light more Evenly.

In one embodiment, the diffusion layer 214 may be an optical coating including granular reflective crystals. In other embodiments, the diffusion layer 214 may also have a multilayer film structure. The diffusion layer 214 of the multilayer film structure can change the light emitting unit 213. The direction of light emission is such that the light emitted by the light-emitting unit 213 is directed toward the reflector 22, and the diffusion layer 214 of the multilayer film structure allows the light emitted from the reflector 22 to the light source substrate 21 to pass through, that is, the diffusion of the multilayer film structure The layer 214 has a selective light-transmitting ability, which can prevent part of the light from being blocked by the diffusion layer 214 and unable to irradiate the display window, and further improve the light utilization rate of the display panel 20.

The display panel 20 also includes a composite optical layer 23 which is disposed on the side of the light source substrate 21 away from the reflector 22. The composite optical layer 23 includes a retardation film, an ultra-macro multi-crystal structure brightness enhancement film, and a reflective polarizer. At least one of brightness enhancement film, diffusion film and scattering film. In one embodiment, the composite optical layer 23 has a single-layer structure, and the composite optical layer 23 is a retardation film, an ultra-macro polycrystalline structure brightness enhancement film, a reflective polarization brightness enhancement film, a diffusion film, and a scattering film. One; in one embodiment, the composite optical layer 23 is a double-layer structure, the composite optical layer 23 includes a retardation film, an ultra-macro multi-crystal structure brightness enhancement film and a reflective polarized brightness enhancement film and a diffusion film And a scattering film; in one embodiment, the composite optical layer 23 includes a three-layer structure, and the composite optical layer 23 is a retardation film, an ultra-macro multi-crystal structure brightness enhancement film, and a reflective polarized brightness enhancement film Two kinds of and one of diffuser and diffuser.

The display panel 20 further includes a color conversion layer 24 disposed between the reflector 22 and the light source substrate 21. The color conversion layer 24 includes at least one of quantum dot materials and fluorescent materials. The color conversion layer 24 The color of the light passing through the color conversion layer 24 can be changed to meet the display requirements of the display panel 20.

The third embodiment

Please refer to FIGS. 1 and 4. FIG. 1 is a schematic plan view of a display panel 30 according to an embodiment of the present invention. FIG. 4 is a schematic cross-sectional view of the display panel 30 of FIG. 1 along the line II-II.

A display panel 30 includes a light source substrate 31 and a reflecting plate 32. The reflecting plate 32 is arranged on one side of the light source substrate 31 and spaced apart from the light source substrate 31. The light source substrate 31 includes a transparent substrate 311 and a plurality of diffusion grooves 312 And a plurality of light emitting units 313, the surface of the transparent substrate 311 is formed with a plurality of diffusion grooves 312 recessed into the transparent substrate 311, the plurality of light emitting units 313 are arranged on the surface of the transparent substrate 311, and the plurality of diffusion grooves 312 are arranged on the light source substrate 31 and On the opposite surface of the reflective plate 32, a plurality of light-emitting units 313 are arranged on the surface of the light source substrate 31 away from the display window of the display panel 30, the display window is used for displaying images, and the multiple light-emitting units 313 are arranged on the light source substrate 31 facing the reflective plate 32 The light emitting unit 313 is arranged in the diffusion groove 312 on the surface of the

The material of the transparent substrate 311 can be an inorganic substance, such as silicon dioxide (SiO2); the material of the transparent substrate 311 can also be an organic substance, such as polymethyl methacrylate (PMMA), polyimide ( Polyimide, PI), polyethylene naphthalate two formic acid glycol ester (PEN), polycarbonate (PC) or polyethylene glycol terephthalate (PET) . The transparent substrate 311 can be a flexible material or a non-flexible material. In this embodiment, the transparent substrate 311 is a non-flexible material, and the transparent substrate 311 is polymethyl methacrylate, which has good rigidity and makes the light source substrate 31 is not easy to deform. In other embodiments, the transparent substrate 311 may also be a flexible material (such as PC, PI, or PEN).

A plurality of diffusion grooves 312 are disposed on the surface of the transparent substrate 311. In one embodiment, the diffusion grooves 312 are arranged in a matrix. The light-emitting unit 313 is arranged at the lowest point of the diffusion groove 312. The light source substrate 31 also includes a transparent conductive circuit and a thin film transistor array (not shown). The transparent conductive circuit and the thin film transistor array are disposed on the transparent substrate 311. There is a surface of a light emitting unit 313, which is electrically connected to the thin film transistor array through the transparent conductive circuit, the transparent conductive circuit may be indium tin oxide (ITO), and the transparent transistor array controls light emission Unit 313 works. The number of the light emitting unit 313 is multiple, and the light emitting unit 313 may be a micro LED light emitting chip or an organic light emitting diode (OLED).

The shape of the opening of the diffusion groove 312 is a part of a sphere, a cone, and a cubic cone. The diffusion groove 312 has a lowest point, and the lowest point refers to a point or an area where the diffusion groove 312 is at the greatest distance from the reflector 32. At least part of the surface of the diffusion groove 312 close to the light-emitting unit 313 is provided with a diffusion layer 314, and the diffusion layer 314 can refract, reflect or scatter light. The light emitting unit 313 arranged at the lowest point emits light, and the diffusion layer 314 changes the irradiation angle of the light to further increase the irradiation range of the light emitted by the light emitting unit 313 and the light becomes uniform. The light emitted by the light emitting unit 313 directly irradiates or passes through the diffusion layer 314 to change the irradiating direction and then irradiates the reflective plate 32. The reflective plate 32 further changes the direction of the light so that most of the light is irradiated toward the display window of the display panel 30 , The light is displayed in the display window. The light source substrate 31 and the reflector 32 are spaced apart, and there is a gap between the light source substrate 31 and the reflector 32. The light emitted by the light emitting unit 313 is further reflected on the surface of the reflector 32 after passing through the optical path of the gap. Evenly.

In one embodiment, the diffusion layer 314 may be an optical coating including granular reflective crystals. In other embodiments, the diffusion layer 314 may also have a multilayer film structure. The diffusion layer 314 of the multilayer film structure can change the light emitting unit 313. The direction of light emission is such that the light emitted by the light-emitting unit 313 is directed toward the reflector 32, and the diffusion layer 314 of the multilayer film structure allows the light emitted from the reflector 32 to the light source substrate 31 to pass through, that is, the diffusion of the multilayer film structure The layer 314 has a selective light-transmitting ability, which can prevent part of the light from being blocked by the diffusion layer 314 from being irradiated to the display window, and further improve the light utilization rate of the display panel 30.

The display panel 30 also includes a composite optical layer 33 disposed on the side of the light source substrate 31 away from the reflector 32. The composite optical layer 33 includes a retardation film, an ultra-macro multi-crystal structure brightness enhancement film, and a reflective polarizer. At least one of brightness enhancement film, diffusion film and scattering film. In one embodiment, the composite optical layer 33 has a single-layer structure, and the composite optical layer 33 is a retardation film, an ultra-macro multi-crystal structure brightness enhancement film, a reflective polarization brightness enhancement film, a diffusion film, and a scattering film. One; In one embodiment, the composite optical layer 33 is a double-layer structure, the composite optical layer 33 includes a retardation film, an ultra-macro multi-crystal structure brightness enhancement film and a reflective polarized brightness enhancement film and a diffusion film And a scattering film; in one embodiment, the composite optical layer 33 includes a three-layer structure, and the composite optical layer 33 is a retardation film, an ultra-macro multi-crystal structure brightness enhancement film, and a reflective polarized brightness enhancement film Two kinds of and one of diffuser and diffuser.

The display panel 30 also includes a plurality of color conversion units 35. One of the color conversion units 35 covers the surface of a light-emitting unit 313 that is not in contact with the transparent substrate 311. The color conversion unit 35 includes at least one of quantum dot materials and fluorescent materials. One is that the color conversion unit 35 can change the color of the light passing through the color conversion unit 35 to meet the display requirements of the display panel 30.

Please refer to FIG. 5, which is a schematic diagram of a specific implementation of the electronic device 1 using the display panel 40 of the present invention. In this embodiment, the electronic device 1 is a mobile phone, including a main body 2 and a display panel 40 disposed in the main body 2. The display panel 40 is a display panel provided by the present invention, for example, it can be the one described in any of the above embodiments. Display panel.

In FIG. 4, only the electronic device 1 is a mobile phone as an example. In other embodiments, the electronic device 1 may also be a personal computer, a smart home appliance, an industrial controller, etc. When the electronic device 1 is a mobile phone, the display panel 20 can be arranged corresponding to the front of the mobile phone.

1: Electronic device 2: subject 10, 20, 30, 40: display panel 11, 21, 31: light source substrate 111, 211, 311: transparent substrate 112, 212, 312: diffusion tank 113, 213, 313: light-emitting unit 114, 214, 314: diffusion layer 12, 22, 32: reflector 13, 23, 33: composite optical layer 14, 24: color conversion layer 35: color conversion unit

FIG. 1 is a schematic plan view of a display panel according to an embodiment of the invention.

2 is a schematic cross-sectional view of a display panel according to an embodiment of the invention.

3 is a schematic cross-sectional view of a display panel according to an embodiment of the invention.

4 is a schematic cross-sectional view of a display panel according to an embodiment of the invention.

FIG. 5 is a schematic diagram of an electronic device applying a display panel according to a preferred embodiment of the present invention.

10: Display panel

11: Light source substrate

111: Transparent substrate

112: diffusion tank

113: light-emitting unit

114: diffusion layer

12: reflector

13: Composite optical layer

14: color conversion layer

Claims (10)

A display panel is improved in that it includes a light source substrate and a reflector, the reflector is arranged on one side of the light source substrate and spaced apart from the light source substrate, and the light source substrate includes a transparent substrate and a plurality of light emitting units And a plurality of diffusion grooves, the surface of the transparent substrate forms the plurality of diffusion grooves recessed into the transparent substrate, the plurality of light emitting units are arranged on the surface of the transparent substrate, the plurality of diffusion grooves The plurality of light-emitting units are arranged on the surface of the light source substrate opposite to the reflector plate, the multiple light-emitting units are arranged on the surface of the light source substrate facing the reflector plate, and at least one light-emitting unit is arranged in one of the diffusion grooves. The display panel according to claim 1, wherein: each of the light-emitting units is arranged in one of the diffusion grooves. The display panel according to claim 1, wherein: at least part of the surface of the diffusion groove close to the light-emitting unit is provided with a diffusion layer, and the diffusion layer refracts, reflects or scatters light. The display panel according to claim 3, wherein: the diffusion layer is a multilayer film structure, and the diffusion layer changes the direction of light emitted by the light-emitting unit so that the light emitted by the light-emitting unit is directed toward the reflecting plate, The diffusion layer allows the light emitted from the reflecting plate to the light source substrate to pass through. The display panel according to claim 2, wherein: the shape of the opening of the diffusion groove is a part of a sphere, a cone, and a cubic cone, and the light-emitting unit is arranged at the lowest point of the diffusion groove. The display panel according to claim 1, wherein: the display panel further includes a composite optical layer, the composite optical layer is disposed on a side of the light source substrate away from the reflector, and the composite optical layer includes a retardation film , At least one of ultra-macro multi-crystal structure brightness enhancement film, reflective polarization brightness enhancement film, diffusion film and scattering film. The display panel according to claim 6, wherein: the display panel further includes a color conversion layer, the color conversion layer includes at least one of a quantum dot material and a fluorescent material, and the color conversion layer is disposed on the Between the composite optical layer and the light source substrate. The display panel according to claim 6, wherein: the display panel further includes a color conversion layer, the color conversion layer includes at least one of a quantum dot material and a fluorescent material, and the color conversion layer is disposed on the Between the reflector and the light source substrate. The display panel according to claim 6, wherein: the display panel further includes a plurality of color conversion units, the color conversion units include at least one of a quantum dot material and a fluorescent material, and one of the color conversion units covers A surface of the light-emitting unit not in contact with the transparent substrate. An electronic device, wherein the electronic device includes a display panel, and the display panel is the display panel described in any one of claim items 1-9.

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