CN114815363A - Display device - Google Patents
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- CN114815363A CN114815363A CN202210541166.9A CN202210541166A CN114815363A CN 114815363 A CN114815363 A CN 114815363A CN 202210541166 A CN202210541166 A CN 202210541166A CN 114815363 A CN114815363 A CN 114815363A
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- light
- display panel
- adjusting film
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- light emitting
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
Abstract
The application discloses display device includes: a transparent display panel; the first light adjusting film is arranged on one side of the transparent display panel or in the transparent display panel; the first light adjusting film at least comprises a first electrode layer, a second electrode layer and polymer dispersed liquid crystal arranged between the first electrode layer and the second electrode layer, and the first light adjusting film can be changed between a transparent state and an opaque state. According to the embodiment of the application, the first dimming film is arranged on one side of the transparent display panel or in the transparent display panel, and when transparent display is required, the first dimming film can be changed into or kept in a transparent state; when a high-quality image needs to be watched, the first dimming film can be converted into or kept in an opaque state, and the dark state brightness of the image displayed by the transparent display panel is reduced, so that the characteristics of the transparent display panel such as brightness, image color saturation, contrast and the like are improved.
Description
Technical Field
The application relates to the field of display, in particular to a display device.
Background
Liquid crystal display panels, organic light emitting display panels (OLEDs), and the like have been widely used in human life, such as display screens of mobile phones, computers, and the like. With the development of display technology, the application range of organic light emitting display panels (OLEDs) is becoming wider and wider, for example, transparent display panels have been developed, and in particular, transparent organic light emitting display panels (transparent OLEDs) have been applied to human lives.
However, when the current transparent display panel displays an image, the transparent display panel has characteristics of greatly reduced efficiency of light emitting devices, brightness, color saturation of the image, contrast ratio, and the like, because the opposite side environment can be seen through the transparent display panel.
Disclosure of Invention
The embodiment of the application provides a display device, can solve present transparent display panel when showing the image, because can pass transparent display panel and see contralateral environment for transparent display panel has characteristics such as luminance, image color saturation, contrast and descends by a wide margin.
An embodiment of the present application provides a display device, including:
a transparent display panel;
the first light adjusting film is arranged on one side of the transparent display panel or in the transparent display panel;
the first light adjusting film at least comprises a first electrode layer, a second electrode layer and polymer dispersed liquid crystal arranged between the first electrode layer and the second electrode layer, and the first light adjusting film can be switched between a transparent state and an opaque state.
Optionally, in some embodiments of the present application, the transparent display panel includes a substrate, a light emitting layer disposed on the substrate, and an encapsulation layer disposed on the light emitting layer, and the display device further includes:
the second light adjusting film is arranged on one side of the transparent display panel or in the transparent display panel, the first light adjusting film and the second light adjusting film are respectively arranged on two sides of the light emitting layer, and the second light adjusting film can be changed between a transparent state and an opaque state.
Optionally, in some embodiments of the present application, the first light modulation film is located on a side of the light emitting layer away from the encapsulation layer, and the second light modulation film is located on a side of the light emitting layer away from the substrate;
under the condition that the display device displays an image on the side of the light-emitting layer far away from the substrate, the first light-adjusting film is converted into an opaque state, and the second light-adjusting film is converted into a transparent state;
under the condition that the display device only displays an image on the side of the light emitting layer far away from the packaging layer, the first light adjusting film is converted into a transparent state, and the second light adjusting film is converted into an opaque state.
Optionally, in some embodiments of the present application, the light emitting layer includes a plurality of light emitting devices arranged in an array, the light emitting device includes a first light emitting device electrode and a second light emitting device electrode, and a light emitting material layer located between the first light emitting device electrode and the second light emitting device electrode, and both the first light emitting device electrode and the second light emitting device electrode are transparent electrodes.
Optionally, in some embodiments of the present application, the transparent display panel includes a light emitting layer including a plurality of light emitting devices arranged in an array;
in the first electrode layer and the second electrode layer, at least the first electrode layer includes a plurality of first sub-electrodes, and one of the first sub-electrodes is disposed corresponding to one of the light emitting devices.
Optionally, in some embodiments of the present application, the transparent display panel includes a substrate, a light emitting layer disposed on the substrate, an encapsulation layer disposed on the light emitting layer;
the first light adjusting film is arranged on one side of the transparent display panel, and the first light adjusting film is arranged on the surface of one of the substrate and the packaging layer.
Optionally, in some embodiments of the present application, the transparent display panel includes a substrate, a light emitting layer disposed on the substrate, an encapsulation layer disposed on the light emitting layer;
the first light adjusting film is arranged in the transparent display panel and arranged between the light emitting layer and the packaging layer.
Optionally, in some embodiments of the present application, the transparent display panel includes a substrate, a thin film transistor array layer disposed on the substrate, a light emitting layer disposed on the thin film transistor array layer, and an encapsulation layer disposed on the light emitting layer;
the first light adjusting film is arranged in the transparent display panel and arranged between the light emitting layer and the thin film transistor array layer.
Optionally, in some embodiments of the present application, the transparent display panel further includes a thin film transistor array layer disposed between the substrate and the light emitting layer and arranged in an array;
the first light adjusting film is arranged in the transparent display panel and is arranged between the light emitting layer and the thin film transistor array layer;
the second light adjusting film is arranged in the transparent display panel and arranged between the light emitting layer and the packaging layer.
Optionally, in some embodiments of the present application, the first light modulation film is disposed on one side of the transparent display panel, and the first light modulation film is disposed on a surface of the substrate on a side away from the light emitting layer;
the second light adjusting film is arranged on one side of the transparent display panel, and the second light adjusting film is arranged on the surface of one side, far away from the substrate, of the packaging layer
In an embodiment of the present application, there is provided a display device including: a transparent display panel; the first light adjusting film is arranged on one side of the transparent display panel or in the transparent display panel; the first light adjusting film at least comprises a first electrode layer, a second electrode layer and polymer dispersed liquid crystal arranged between the first electrode layer and the second electrode layer, and the first light adjusting film can be changed between a transparent state and an opaque state. According to the embodiment of the application, the first dimming film is arranged on one side of the transparent display panel or in the transparent display panel, the first dimming film can be changed between a transparent state and an opaque state, and when transparent display is required or the transparent display panel is required to be in the transparent state, the first dimming film can be changed into or kept in the transparent state, so that people can see the opposite side environment through the transparent display panel; when needing to watch high-quality image, or when not needing transparent display panel to be in transparent state, first membrane of adjusting luminance can change into or keep opaque state for people can not pass transparent display panel and see contralateral environment, first membrane of adjusting luminance has provided an opaque background of transparent display panel, avoids contralateral environment light to get into transparent display panel, has reduced the dark state luminance that transparent display panel shows the image, thereby characteristics such as luminance, image color saturation, contrast that have promoted transparent display panel.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a first schematic diagram of a first cross-sectional structure of a display device 100 according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating a first state of a first cross-sectional structure of a display device 100 according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram illustrating a second state of a first cross-sectional structure of a display device 100 according to an embodiment of the present disclosure;
fig. 4 is a schematic cross-sectional view illustrating a second cross-sectional structure of a display device 100 according to an embodiment of the disclosure;
fig. 5 is a schematic cross-sectional view illustrating a display device 100 according to an embodiment of the disclosure;
fig. 6 is a schematic cross-sectional view illustrating a fourth cross-sectional structure of a display device 100 according to an embodiment of the disclosure;
fig. 7 is a first schematic diagram illustrating a fifth cross-sectional structure of a display device 100 according to an embodiment of the present disclosure;
fig. 8 is a second schematic diagram illustrating a fifth cross-sectional structure of a display device 100 according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
An embodiment of the present application provides a display device, and the display device includes: a transparent display panel; the first light adjusting film is arranged on one side of the transparent display panel or in the transparent display panel; the first light adjusting film at least comprises a first electrode layer, a second electrode layer and polymer dispersed liquid crystal arranged between the first electrode layer and the second electrode layer, and the first light adjusting film can be changed between a transparent state and an opaque state. The following examples are described in detail. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
Example one
Referring to fig. 1 to fig. 5, fig. 1 is a first schematic view of a first cross-sectional structure of a display device 100 according to an embodiment of the present disclosure; fig. 2 is a schematic diagram illustrating a first state of a first cross-sectional structure of a display device 100 according to an embodiment of the present disclosure; FIG. 3 is a diagram illustrating a second state of a first cross-sectional structure of a display device 100 according to an embodiment of the present disclosure; fig. 4 is a schematic cross-sectional view illustrating a second cross-sectional structure of a display device 100 according to an embodiment of the disclosure; fig. 5 is a schematic cross-sectional view of a display device 100 according to an embodiment of the present disclosure. Fig. 2 and 3 are simplified in comparison with fig. 1, and fig. 1 shows a structure of the first light adjusting film 20, and fig. 2 and 3 show a structure and a state of the first light adjusting film.
The embodiment of the present application provides a display device 100, the display device 100 includes a transparent display panel 10 and a first light adjusting film 20, the first light adjusting film 20 is disposed on one side of the transparent display panel 10 or in the transparent display panel 10; the first light adjusting film 20 at least includes a first electrode layer 23, a second electrode layer 25, and a polymer dispersed liquid crystal 24 disposed between the first electrode layer 23 and the second electrode layer 25, and the first light adjusting film 20 is disposed to be capable of being switched between a transparent state and an opaque state.
Specifically, the transparent display panel 10 may be a liquid crystal display panel or an organic light emitting display panel (OLED), which is not limited herein.
Specifically, the first light adjusting film 20 includes at least a first electrode layer 23, a second electrode layer 25, and a polymer dispersed liquid crystal 24 disposed between the first electrode layer 23 and the second electrode layer 25,
specifically, polymer dispersed liquid crystals, also known as pdlc (polymer dispersed liquid crystal), are liquid crystals dispersed in micron-sized droplets in an organic solid polymer matrix, and since the optical axis of the droplets, which are composed of liquid crystal molecules, is in a free orientation, the refractive index thereof does not match the refractive index of the matrix, and light is strongly scattered by the droplets as it passes through the matrix to assume an opaque milky or translucent state. Application of an electric field can adjust the optical axis orientation of the liquid crystal droplets, which when index matched, appear transparent. The electric field is removed and the liquid crystal droplets restore the original state of astigmatism, thereby performing the display.
Specifically, the first light adjusting film 20 is disposed on one side of the transparent display panel 10 or in the transparent display panel 10, and the transparent display panel 10 includes a substrate 11 and an encapsulation layer 15.
Specifically, the first light adjusting film 20 is disposed on one side of the transparent display panel 10, that is, the first light adjusting film 20 is disposed on one side of the substrate 11 away from the encapsulation layer 15, or the first light adjusting film 20 is disposed on one side of the encapsulation layer 15 away from the substrate 11.
Specifically, the first light adjusting film 20 is disposed in the transparent display panel 10, that is, the first light adjusting film 20 is disposed between the substrate 11 and the encapsulation layer 15 of the transparent display panel 10.
Specifically, by providing the first dimming film 20 in one side of the transparent display panel 10 or the transparent display panel 10, the first dimming film 20 can be switched between a transparent state and an opaque state, and when transparent display is required or the transparent display panel 10 is required to be in the transparent state, the first dimming film 20 can be switched to or kept in the transparent state, so that people can see the opposite side environment through the transparent display panel 10; when needing to watch high-quality image, or when not needing transparent display panel 10 to be in transparent state, first membrane 20 of adjusting luminance can change into or keep opaque state for people can not pass transparent display panel 10 and see contralateral environment, and first membrane of adjusting luminance has provided an opaque background of transparent display panel, avoids contralateral environment light to get into transparent display panel, has reduced transparent display panel's dark state luminance, thereby has promoted transparent display panel's luminance, image color saturation, contrast.
Specifically, as shown in fig. 2, when no voltage is applied to the first electrode layer 23 and the second electrode layer 25, or when the voltage difference between the first electrode layer 23 and the second electrode layer 25 is 0, liquid crystal molecules in the polymer dispersed liquid crystal 24 are randomly arranged, so that the first light adjusting film 20 is in an opaque state.
Specifically, as shown in fig. 3, when a preset voltage difference is applied to the first electrode layer 23 and the second electrode layer 25, liquid crystal molecules in the polymer dispersed liquid crystal 24 are aligned, so that the first light adjusting film 20 is in a transparent state.
In some embodiments, the light emitting layer 13 includes a plurality of light emitting devices 130 arranged in an array, the light emitting device 130 includes a first light emitting device electrode 131 and a second light emitting device electrode 137, and a light emitting material layer 134 between the first light emitting device electrode 131 and the second light emitting device electrode 137, and both the first light emitting device electrode 131 and the second light emitting device electrode 137 are transparent electrodes.
Specifically, the first and second light emitting device electrodes 131 and 137 of the light emitting device 130 are both transparent electrodes, thereby enabling ambient light to transmit through the transparent display panel 10.
Specifically, the plurality of light emitting devices 130 may include a red light emitting device, a green light emitting device, and a blue light emitting device, but is not limited thereto.
Specifically, the first light emitting device electrode 131 may be an anode, and the second light emitting device electrode 137 may be a cathode, but is not limited thereto.
Further, the first and second light emitting device electrodes 131 and 137 may include: semiconductor oxide electrodes, graphene-based electrodes, conductive polymer electrodes, metal nanowire electrodes, metal mesh electrodes, and the like.
In some embodiments, the transparent display panel 10 includes a light emitting layer 13, and the light emitting layer 13 includes a plurality of light emitting devices 130 arranged in an array; of the first electrode layer 23 and the second electrode layer 25, at least the first electrode layer 23 includes a plurality of first sub-electrodes 231, and one first sub-electrode 231 is disposed corresponding to one light emitting device 130.
Specifically, one first sub-electrode 231 is disposed corresponding to one light emitting device 130, and an orthogonal projection of one first sub-electrode 231 on the substrate 11 overlaps an orthogonal projection of one light emitting device 130 on the substrate 11, or an orthogonal projection of one first sub-electrode 231 on the substrate 11 covers an orthogonal projection of one light emitting device 130 on the substrate 11, so that one first sub-electrode 231 of the first light modulation film 20 can control whether a position where the corresponding one light emitting device 130 is located is in a transparent state, thereby implementing precise control of each part of the display apparatus 100.
The first light modulation film 20 may further include a first substrate 21 and a second substrate 22, the first electrode layer 23 is disposed on the first substrate 21, the second electrode layer 25 is disposed on the second substrate 22, the first substrate 21 and the second substrate 22 may be made of glass, plastic, or the like, for example, the first substrate 21 and the second substrate 22 may be made of Polyimide (PI).
It should be noted that, in the embodiments of the present application, a structure of the transparent display panel 10 is illustrated, and the transparent display panel includes at least: a substrate 11, a thin film transistor array layer 12, a light emitting layer 13, and an encapsulation layer 15. The light-emitting layer 13 may include: the structure of the first light emitting device electrode 131, the hole injection layer 132, the hole transport layer 133, the light emitting material layer 134, the electron transport layer 135, the electron injection layer 136, the second light emitting device electrode layer 137, and the light emitting layer 13 is not limited thereto. A light extraction layer 15(CPL) may also be provided between the light-emitting layer 13 and the encapsulation layer 15.
Example two
The present embodiment is the same as or similar to the display device 100 in the above-described embodiments, except that the features of the display device 100 are further described.
In some embodiments, the transparent display panel 10 includes a substrate 11, a light emitting layer 13 disposed on the substrate 11, an encapsulation layer 15 disposed on the light emitting layer 13; the first light adjusting film 20 is disposed on one side of the transparent display panel 10, and the first light adjusting film 20 is disposed on a surface of one of the substrate 11 and the encapsulation layer 15.
Specifically, as shown in fig. 1, the first light adjusting film 20 is provided on a surface of one of the substrate 11 and the encapsulation layer 15, and the control of the display device 100 can be realized.
In some embodiments, the transparent display panel 10 includes a substrate 11, a light emitting layer 13 disposed on the substrate 11, an encapsulation layer 15 disposed on the light emitting layer 13; the first light adjusting film 20 is disposed in the transparent display panel 10, and the first light adjusting film 20 is disposed between the light emitting layer 13 and the encapsulating layer 15.
Specifically, as shown in fig. 4, the first light adjusting film 20 is disposed in the transparent display panel 10, the first light adjusting film 20 is disposed between the light emitting layer 13 and the encapsulation layer 15, the first light adjusting film 20 is closer to the light emitting layer 13, when a partial region of the first light adjusting film is converted into an opaque state, it can be avoided that the squint ambient light enters human eyes, thereby reducing the dark state brightness of the transparent display panel 10 and improving the image quality such as contrast, for example, when the portion of the light adjusting film 20 corresponding to one of the first sub-electrodes 231 is in the opaque state, it can be avoided that the squint ambient light enters the light emitting device from the periphery of the portion of the light adjusting film 20 corresponding to the first sub-electrode 231, thereby avoiding reducing the dark state brightness of the light emitting device.
In some embodiments, the transparent display panel 10 includes a substrate 11, a thin film transistor array layer 12 disposed on the substrate 11, a light emitting layer 13 disposed on the thin film transistor array layer 12, an encapsulation layer 15 disposed on the light emitting layer 13; the first light adjusting film 20 is disposed in the transparent display panel 10, and the first light adjusting film 20 is disposed between the light emitting layer 13 and the thin film transistor array layer 12.
Specifically, as shown in fig. 5, the first light adjusting film 20 is disposed in the transparent display panel 10, the first light adjusting film 20 is disposed between the light emitting layer 13 and the thin film transistor array layer 12, the first light adjusting film 20 is closer to the light emitting layer 13, when a part of the first light adjusting film is turned into an opaque state, it can be avoided that the oblique-view ambient light enters human eyes, thereby reducing the dark-state brightness of the transparent display panel 10 and improving the image quality such as contrast, for example, when a part of the light adjusting film 20 corresponding to one of the first sub-electrodes 231 is in an opaque state, it can be avoided that the oblique-view ambient light enters the light emitting device from the periphery of the part of the light adjusting film 20 corresponding to the first sub-electrode 231, thereby avoiding reducing the dark-state brightness of the light emitting device.
EXAMPLE III
This embodiment is the same as or similar to the display device 100 in the above embodiment, except that the display device 100 further includes a second light adjusting film 30.
Referring to fig. 6 to 8, fig. 6 is a schematic cross-sectional view illustrating a fourth cross-sectional structure of a display device 100 according to an embodiment of the present disclosure; fig. 7 is a first schematic diagram illustrating a fifth cross-sectional structure of a display device 100 according to an embodiment of the present disclosure; fig. 8 is a second schematic diagram illustrating a fifth cross-sectional structure of a display device 100 according to an embodiment of the present disclosure. Fig. 8 is a simplified diagram showing the first light adjusting film 20 and the second light adjusting film 30 in fig. 7, and fig. 8 shows a part of the structure of the first light adjusting film and a part of the structure of the second light adjusting film, compared with fig. 7.
In some embodiments, the transparent display panel 10 includes a substrate 11, a light emitting layer 13 disposed on the substrate, and an encapsulation layer 15 disposed on the light emitting layer 13, the display device 100 further includes a second light adjusting film 30, the second light adjusting film 30 is disposed on one side of the transparent display panel 10 or in the transparent display panel 10, and the first light adjusting film 20 and the second light adjusting film 30 are respectively disposed on two sides of the light emitting layer 13, and the second light adjusting film 30 can be switched between a transparent state and an opaque state.
Specifically, the display device 100 includes a first light adjusting film 20 and a second light adjusting film 30, the second light adjusting film 30 is provided on one side of the transparent display panel 10 or in the transparent display panel 10, and the first light adjusting film 20 and the second light adjusting film 30 are respectively provided on both sides of the light emitting layer 13.
Specifically, the first light adjusting film 20 and the second light adjusting film 30 are respectively disposed on two sides of the light emitting layer 13, that is, one of the first light adjusting film 20 and the second light adjusting film 30 is disposed on one side of the light emitting layer 13 away from the encapsulation layer 15, and the other of the first light adjusting film 20 and the second light adjusting film 30 is disposed on one side of the light emitting layer 13 away from the substrate 11.
Specifically, the first light adjusting film 20 is disposed on one side of the transparent display panel 10 or in the transparent display panel 10, the second light adjusting film 30 is disposed on one side of the transparent display panel 10 or in the transparent display panel 10, and the first light adjusting film 20 and the second light adjusting film 30 are respectively disposed on both sides of the light emitting layer 13.
Further, in some embodiments, as shown in fig. 8, the second light adjusting film 30 can be the same type of light adjusting film as the first light adjusting film 20, and the second light adjusting film 30 comprises at least a third electrode layer 33, a fourth electrode layer 35, and a polymer dispersed liquid crystal 24 disposed between the third electrode layer 33 and the fourth electrode layer 35.
Further, in some embodiments, of the third electrode layer 33 and the fourth electrode layer 35, at least the third electrode layer 33 includes a plurality of third sub-electrodes 331, and one third sub-electrode 331 is disposed corresponding to one light emitting device 130.
Specifically, one third sub-electrode 331 is disposed corresponding to one light emitting device 130, an orthogonal projection of one third sub-electrode 331 on the substrate 11 overlaps an orthogonal projection of one light emitting device 130 on the substrate 11, or an orthogonal projection of one third sub-electrode 331 on the substrate 11 covers an orthogonal projection of one light emitting device 130 on the substrate 11, so that one third sub-electrode 331 of the second light modulation film 30 can control whether a position where the corresponding one light emitting device 130 is located is in a transparent state, thereby realizing precise control of each part of the display apparatus 100.
Specifically, the transparent display panel 10 and the display device 100 in this embodiment can perform double-sided image display, when an image is displayed on the first side 201 of the light emitting layer 13 or a human eye views the image on the first side 201 of the light emitting layer 13, the light adjusting film (the first light adjusting film or the second light adjusting film) on the second side 202 of the light emitting layer 13 is turned into an opaque state, and the light adjusting film (the second light adjusting film or the first light adjusting film) on the first side 201 of the light emitting layer is turned into a transparent state, so that the image displayed on both sides can improve the quality of the displayed image like the embodiment.
Specifically, the transparent display panel 10 and the display device 100 in this embodiment can perform double-sided image display, when an image is displayed on the second side 202 of the light emitting layer 13 or a human eye views the image on the second side 202 of the light emitting layer 13, the light adjusting film (the second light adjusting film or the first light adjusting film) on the first side 201 of the light emitting layer 13 is changed into an opaque state, and the light adjusting film (the first light adjusting film or the second light adjusting film) on the second side 202 of the light emitting layer is changed into a transparent state, so that the quality of the displayed image can be improved by the double-sided image display in the same manner as the embodiment.
In some embodiments, the first light adjusting film 20 is located on the side of the light emitting layer 13 away from the encapsulation layer 15, and the second light adjusting film 30 is located on the side of the light emitting layer 13 away from the substrate 11; under the condition that the display device 100 displays an image only on the side of the light-emitting layer 13 away from the substrate 11, the first light-adjusting film 20 is turned into the opaque state, and the second light-adjusting film 30 is turned into the transparent state; under the condition that the display device 100 displays an image only on the side of the light-emitting layer 13 away from the encapsulating layer 15, the first light adjusting film 20 is turned into the transparent state, and the second light adjusting film 30 is turned into the opaque state.
The first light adjusting film 20 is located on one side of the light emitting layer 13 far away from the encapsulation layer 15, the second light adjusting film 30 is located on one side of the light emitting layer 13 far away from the substrate 11, the first light adjusting film 20 is arranged on one side of the transparent display panel 10 or in the transparent display panel 10, and the second light adjusting film 30 is arranged on one side of the transparent display panel 10 or in the transparent display panel 10.
Specifically, referring to fig. 7, a side of the light emitting layer 13 away from the substrate 11 is defined as a first side 201, and a side of the light emitting layer 13 away from the encapsulation layer 15 is defined as a second side 202.
Specifically, referring to fig. 7, the first light adjusting film 20 is located on a side of the light emitting layer 13 away from the encapsulation layer 15, the second light adjusting film 30 is located on a side of the light emitting layer 13 away from the substrate 11, that is, the first light adjusting film 20 is located on a second side 202 of the light emitting layer 13, and the second light adjusting film 30 is located on a first side 201 of the light emitting layer 13.
Specifically, referring to fig. 7, under the condition that only the first side 201 of the light emitting layer 13 displays an image, the first light adjusting film 20 is turned into the opaque state, and the second light adjusting film 30 is turned into the transparent state, so that a person can view the image on the first side 201 and has high image quality.
Specifically, referring to fig. 7, under the condition that only the second side 202 of the light-emitting layer 13 displays an image, the first light-adjusting film 20 is converted into a transparent state, and the second light-adjusting film 30 is converted into an opaque state, and has high image quality.
Example four
The present embodiment is the same as or similar to the display device 100 in the third embodiment described above, except that the features of the display device 100 are further described.
In some embodiments, the transparent display panel 10 further includes a thin film transistor array layer 12 disposed between the substrate 11 and the light emitting layer 13 and arranged in an array; the first light adjusting film 20 is arranged in the transparent display panel 10, and the first light adjusting film 20 is arranged between the light emitting layer 13 and the thin film transistor array layer 12; the second light adjusting film 30 is disposed in the transparent display panel 10, and the second light adjusting film 30 is disposed between the light emitting layer 13 and the encapsulating layer 15.
Specifically, as shown in fig. 6, the first light adjusting film 20 is provided between the light emitting layer 13 and the thin film transistor array layer 12, and the second light adjusting film 30 is provided between the light emitting layer 13 and the encapsulation layer 15.
Specifically, first membrane 20 and second membrane 30 of adjusting luminance all set up in transparent display panel 10, and when luminescent layer 13 or transparent display panel 10 any side display image, all can avoid squint environment light to get into light emitting device and people's eye to reduce transparent display panel 10's dark state luminance and promote image quality such as contrast.
In some embodiments, the first light adjusting film 20 is disposed on one side of the transparent display panel 10, and the first light adjusting film 20 is disposed on one side surface of the substrate 11 away from the light emitting layer 13; the second light adjusting film 30 is disposed on one side of the transparent display panel 10, and the second light adjusting film 30 is disposed on a surface of the encapsulation layer 15 away from the substrate 11.
Specifically, as shown in fig. 7, the first light modulation film 10 may be disposed on a surface of the substrate 11 away from the light emitting layer 13 by means of attachment, and the second light modulation film 30 may be disposed on a surface of the encapsulation layer 15 away from the substrate 11 by means of attachment, which has an effect of simple manufacturing process.
The second light adjusting film 30 may include a third substrate 31 and a fourth substrate 32, a third electrode layer 33 is disposed on the third substrate 31, a fourth electrode layer 35 is disposed on the fourth substrate 32, and the polymer dispersed liquid crystal 24 is disposed between the third electrode layer 33 and the fourth electrode layer 35.
It should be noted that a light extraction layer 14(CPL) may be further disposed between the encapsulation layer 15 and the light emitting layer 13, and the light extraction layer 14 is used to improve the light extraction efficiency of the transparent display panel 10.
The foregoing detailed description is directed to a display device provided in an embodiment of the present application, and specific examples are used herein to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A display device, comprising:
a transparent display panel;
the first light adjusting film is arranged on one side of the transparent display panel or in the transparent display panel;
the first light adjusting film at least comprises a first electrode layer, a second electrode layer and polymer dispersed liquid crystal arranged between the first electrode layer and the second electrode layer, and the first light adjusting film can be switched between a transparent state and an opaque state.
2. The display device according to claim 1, wherein the transparent display panel includes a substrate, a light emitting layer disposed on the substrate, an encapsulation layer disposed on the light emitting layer, the display device further comprising:
the second light adjusting film is arranged on one side of the transparent display panel or in the transparent display panel, the first light adjusting film and the second light adjusting film are respectively arranged on two sides of the light emitting layer, and the second light adjusting film can be changed between a transparent state and an opaque state.
3. The display device according to claim 2, wherein the first light adjusting film is provided on a side of the light emitting layer away from the encapsulation layer, and the second light adjusting film is provided on a side of the light emitting layer away from the substrate;
under the condition that the display device displays an image on the side of the light-emitting layer far away from the substrate, the first light-adjusting film is converted into an opaque state, and the second light-adjusting film is converted into a transparent state;
under the condition that the display device only displays an image on the side of the light emitting layer far away from the packaging layer, the first light adjusting film is converted into a transparent state, and the second light adjusting film is converted into an opaque state.
4. The display apparatus according to any one of claims 1 to 3, wherein the light-emitting layer comprises a plurality of light-emitting devices arranged in an array, the light-emitting devices comprising a first light-emitting device electrode and a second light-emitting device electrode, and a light-emitting material layer between the first light-emitting device electrode and the second light-emitting device electrode, the first light-emitting device electrode and the second light-emitting device electrode being both transparent electrodes.
5. The display apparatus according to claim 1, wherein the transparent display panel includes a light emitting layer including a plurality of light emitting devices arranged in an array;
in the first electrode layer and the second electrode layer, at least the first electrode layer includes a plurality of first sub-electrodes, and one of the first sub-electrodes is disposed corresponding to one of the light emitting devices.
6. The display device according to claim 1, wherein the transparent display panel includes a substrate, a light emitting layer disposed on the substrate, an encapsulation layer disposed on the light emitting layer;
the first light adjusting film is arranged on one side of the transparent display panel, and the first light adjusting film is arranged on the surface of one of the substrate and the packaging layer.
7. The display device according to claim 1, wherein the transparent display panel includes a substrate, a light emitting layer disposed on the substrate, an encapsulation layer disposed on the light emitting layer;
the first light adjusting film is arranged in the transparent display panel and arranged between the light emitting layer and the packaging layer.
8. The display device according to claim 1, wherein the transparent display panel includes a substrate, a thin film transistor array layer disposed on the substrate, a light emitting layer disposed on the thin film transistor array layer, an encapsulation layer disposed on the light emitting layer;
the first light adjusting film is arranged in the transparent display panel and arranged between the light emitting layer and the thin film transistor array layer.
9. The display device according to claim 2, wherein the transparent display panel further comprises a thin film transistor array layer disposed between the substrate and the light emitting layer and arranged in an array;
the first light adjusting film is arranged in the transparent display panel and is arranged between the light emitting layer and the thin film transistor array layer;
the second light adjusting film is arranged in the transparent display panel and arranged between the light emitting layer and the packaging layer.
10. The display device according to claim 2, wherein the first light adjusting film is provided on a side of the transparent display panel, and the first light adjusting film is provided on a surface of the substrate on a side away from the light emitting layer;
the second light adjusting film is arranged on one side of the transparent display panel, and the second light adjusting film is arranged on the surface of one side, far away from the substrate, of the packaging layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210541166.9A CN114815363A (en) | 2022-05-17 | 2022-05-17 | Display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210541166.9A CN114815363A (en) | 2022-05-17 | 2022-05-17 | Display device |
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