Display device and vehicle

Abstract

The present application discloses a display device and a vehicle. The display area includes a plurality of display sub-areas and a plurality of transparent sub-areas. The display device includes: a display panel, with light-emitting devices arranged corresponding to the display sub-areas; an electrophoretic color-changing layer, arranged on one side of the display panel; wherein, the electrophoretic color-changing layer includes a plurality of electrophoretic color-changing devices, the electrophoretic color-changing devices are arranged corresponding to the transparent sub-areas, and the electrophoretic color-changing devices can transition between two states of transparent and opaque. When the display device displays an image, the electrophoretic color-changing devices can transition to an opaque state to improve the display quality of the image, especially for low gray-scale display images with high quality, and at the same time can block external heat and ultraviolet rays to avoid strong light stimulation to the passengers; when the display device does not display an image and the passengers need to observe the external environment of the vehicle, the electrophoretic color-changing devices can transition to a transparent state, and the display device has a high transmittance effect, and the passengers can observe the outside well.

Description

Technical Field

[0001] The present application relates to the field of displays, and particularly to a display device and a vehicle. Background Art

[0002] Organic light-emitting display panels (OLEDs) or organic light-emitting display devices have been widely used in people's lives, such as the display screens of mobile phones, computers, etc. With the development of display technology, the application scope of organic light-emitting display panels (OLEDs) is becoming wider and wider. For example, transparent display organic light-emitting display panels or transparent display organic light-emitting display devices are applied to the glass of vehicles.

[0003] However, when the glass of a current vehicle uses a transparent display device, the ambient light passing through the transparent area of the transparent display device affects the display effect. In particular, the viewing effect of the image during low gray-scale display is poor. At the same time, the transparent display device cannot take into account blocking external heat and ultraviolet rays, causing strong light stimulation to the passengers. Summary of the Invention

[0004] Embodiments of the present application provide a display device and a vehicle, which can solve the problem that when the glass of a current vehicle uses a transparent display device, the ambient light passing through the transparent area of the transparent display device affects the display effect, especially the poor viewing effect of the image during low gray-scale display. At the same time, it can solve the problem that the transparent display device cannot block external heat and ultraviolet rays, causing strong light stimulation to the passengers.

[0005] Embodiments of the present application provide a display device, including a display area and at least a part of a non-display area surrounding the display area. The display area includes a plurality of display sub-areas and a plurality of transparent sub-areas. The display sub-areas and the transparent sub-areas are arranged in an array. The display device includes:

[0006] A display panel, including a substrate and a plurality of light-emitting devices arranged on the substrate. The light-emitting devices are arranged corresponding to the display sub-areas;

[0007] An electrophoretic color-changing layer, arranged on one side of the display panel;

[0008] Wherein, the electrophoretic color-changing layer includes a plurality of electrophoretic color-changing devices. The electrophoretic color-changing devices are arranged corresponding to the transparent sub-areas. The electrophoretic color-changing devices can be switched between two states of transparent and opaque.

[0009] Optionally, in some embodiments of the present application, the electrophoretic color-changing layer includes a first substrate, a second substrate, and a barrier wall. The barrier wall is arranged between the first substrate and the second substrate. The barrier wall surrounds to form a plurality of the electrophoretic color-changing devices.

[0010] Optionally, in some embodiments of the present application, the electrochromic layer further includes a plurality of through units, which are provided corresponding to the display sub-regions and are disposed between adjacent electrochromic devices.

[0011] Optionally, in some embodiments of the present application, the electrochromic layer further includes a sealing frame adhesive bonded between the first substrate and the second substrate. The sealing frame adhesive is disposed between the first substrate and the second substrate and is disposed in the non-display area.

[0012] Optionally, in some embodiments of the present application, the electrochromic layer further includes a first electrode layer. The first electrode layer includes a first electrode and a second electrode corresponding to each electrochromic device. The first electrode and the second electrode in the same electrochromic device are spaced apart. Each electrochromic device further includes charged particles disposed on one side of the first electrode and the second electrode, and the charged particles can move in the electrochromic device as the voltage between the first electrode and the second electrode changes.

[0013] Optionally, in some embodiments of the present application, the first electrode layer is disposed on the first substrate or the second substrate.

[0014] Optionally, in some embodiments of the present application, the first electrode is a transparent electrode and is provided corresponding to the transparent sub-region.

[0015] Optionally, in some embodiments of the present application, the display area further includes an opaque sub-region between the display sub-region and the transparent sub-region, and at least a part of the second electrode is provided corresponding to the opaque sub-region.

[0016] Optionally, in some embodiments of the present application, the electrochromic layer further includes a second electrode layer and a spacer insulating layer disposed on the first substrate or the second substrate. The second electrode layer is disposed between the first electrode layer and the first substrate or between the first electrode layer and the second substrate. The spacer insulating layer is disposed between the first electrode layer and the second electrode layer, and the first electrode layer and the second electrode layer are disposed on the same substrate;

[0017] The first electrode layer further includes connection electrodes, and the connection electrodes are connected between adjacent first electrodes;

[0018] The second electrode layer further includes a first trace, and a plurality of the second electrodes are electrically connected through the first trace.

[0019] Optionally, in some embodiments of the present application, at least three light-emitting devices of different colors are located in one display sub-region, the transparent sub-region is located between two adjacent display sub-regions, and the second electrode is disposed on at least one side of the first electrode.

[0020] Optionally, in some embodiments of the present application, the barrier wall is at least partially disposed on the first electrode or the second electrode.

[0021] Optionally, in some embodiments of the present application, the display panel further includes a packaging layer disposed on a side of the light-emitting device away from the substrate, and the first substrate is the substrate or the packaging layer of the display panel.

[0022] Optionally, in some embodiments of the present application, the first substrate is the packaging layer, and both the first electrode and the second electrode are disposed on the packaging layer.

[0023] Optionally, in some embodiments of the present application, the barrier wall is an organic material formed on the first substrate.

[0024] Optionally, in some embodiments of the present application, the display panel further includes a packaging layer, as well as a transistor and an opening disposed between the substrate and the packaging layer. The light-emitting device is disposed on the transistor, the packaging layer is disposed on the light-emitting device, the opening corresponds to the transparent sub-region, the opening at least penetrates a film layer of the inorganic material of the transistor, and the filling material in the opening includes an organic material.

[0025] Optionally, in some embodiments of the present application, when a first voltage is applied between the first electrode and the second electrode, the charged particles aggregate on the first electrode, and the transparent sub-region is in an opaque state;

[0026] When a second voltage is applied between the first electrode and the second electrode, the charged particles aggregate on the second electrode, and the transparent sub-region is in a transparent state;

[0027] Wherein, the first voltage and the second voltage are reverse voltages.

[0028] Optionally, in some embodiments of the present application, when a third voltage is applied between the first electrode and the second electrode, the charged particles are distributed on the first electrode and the second electrode, the transparent sub-region is in a grayscale state, and the absolute value of the third voltage is less than the absolute value of the first voltage and the absolute value of the second voltage.

[0029] Correspondingly, an embodiment of the present application further provides a vehicle, including the display device described in any one of the above.

[0030] In an embodiment of the present application, a display device and a vehicle are provided. The display device includes a display area and a non-display area at least partially surrounding the display area. The display area includes a plurality of display sub-areas and a plurality of transparent sub-areas, and the display sub-areas and the transparent sub-areas are arranged in an array. The display device includes: a display panel including a substrate and a plurality of light-emitting devices disposed on the substrate, and the light-emitting devices are disposed corresponding to the display sub-areas; an electrophoretic color-changing layer disposed on one side of the display panel; wherein, the electrophoretic color-changing layer includes a plurality of electrophoretic color-changing devices, the electrophoretic color-changing devices are disposed corresponding to the transparent sub-areas, and the electrophoretic color-changing devices can be switched between two states of transparent and opaque. In the present application, the electrophoretic color-changing devices of the electrophoretic color-changing layer are disposed corresponding to the transparent sub-areas; when the display device displays an image, the electrophoretic color-changing devices can be switched to an opaque state to improve the display quality of the image, especially for low-gray-scale display images with high quality, and at the same time can block external heat and ultraviolet rays to avoid strong light stimulation to the passengers; when the display device does not display an image and the passengers need to observe the external environment of the vehicle, the electrophoretic color-changing devices can be switched to a transparent state, and the display device has a high transmittance effect, and the passengers can observe the outside well. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0032] Figure 1 The first cross-sectional structure schematic diagram of a display device provided by an embodiment of the present application;

[0033] Figure 2 The second cross-sectional structure schematic diagram of a display device provided by an embodiment of the present application;

[0034] Figure 3 The third cross-sectional structure schematic diagram of a display device provided by an embodiment of the present application;

[0035] Figure 4 The fourth cross-sectional structure schematic diagram of a display device provided by an embodiment of the present application;

[0036] Figure 5 The fifth cross-sectional structure schematic diagram of a display device provided by an embodiment of the present application;

[0037] Figure 6 The top view schematic diagram of a partial structure of the electrophoretic color-changing layer of a display device provided by an embodiment of the present application;

[0038] Figure 7A partial top view schematic diagram of a first electrode of a display device provided by an embodiment of the present application;

[0039] Figure 8 A schematic diagram of a first state of a display device provided by an embodiment of the present application;

[0040] Figure 9 A schematic diagram of a second state of a display device provided by an embodiment of the present application;

[0041] Figure 10 A schematic diagram of a third state of a display device provided by an embodiment of the present application;

[0042] Figure 11 A schematic diagram of a vehicle provided by an embodiment of the present application. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the accompanying drawings; and "inner" and "outer" refer to the outline of the device.

[0044] An embodiment of the present application provides a display device. The display device includes a display area and at least a part of a non-display area surrounding the display area. The display area includes a plurality of display sub-areas and a plurality of transparent sub-areas, and the display sub-areas and the transparent sub-areas are arranged in an array. The display device includes: a display panel, including a substrate and a plurality of light-emitting devices disposed on the substrate, and the light-emitting devices are disposed corresponding to the display sub-areas; an electrophoretic color-changing layer disposed on one side of the display panel; wherein, the electrophoretic color-changing layer includes a plurality of electrophoretic color-changing devices, the electrophoretic color-changing devices are disposed corresponding to the transparent sub-areas, and the electrophoretic color-changing devices can be switched between two states of transparent and opaque. An embodiment of the present application also provides a vehicle including the aforementioned display device, and the following will be described in detail respectively. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments.

[0045] Embodiment 1

[0046] Please refer to Figures 1 to 4 、 Figures 8 to 10 , Figure 1The first cross-sectional structure diagram of a display device 1000 provided by an embodiment of the present application; Figure 2 The second cross-sectional structure diagram of a display device 1000 provided by an embodiment of the present application; Figure 3 The third cross-sectional structure diagram of a display device 1000 provided by an embodiment of the present application; Figure 4 The fourth cross-sectional structure diagram of a display device 1000 provided by an embodiment of the present application; Figure 8 The schematic diagram of the first state of a display device 1000 provided by an embodiment of the present application; Figure 9 The schematic diagram of the second state of a display device 1000 provided by an embodiment of the present application; Figure 10 The schematic diagram of the third state of a display device 1000 provided by an embodiment of the present application. Figure 2 Same as Figure 1 in structure, the difference is that for the convenience of numbering, the numbers of some structures in Figure 1 are shown in Figure 2

[0047] An embodiment of the present application provides a display device 1000. The display device 1000 includes a display area AA and a non-display area BB that at least partially surrounds the display area AA. The display area AA includes a plurality of display sub-areas AA1 and a plurality of transparent sub-areas AA2. The display sub-areas AA1 and the transparent sub-areas AA2 are arranged in an array. The display device 1000 includes a display panel 100 and an electrophoretic color-changing layer 200. The display panel 100 includes a substrate 11 and a plurality of light-emitting devices 102 disposed on the substrate 11. The light-emitting devices 102 are disposed corresponding to the display sub-areas AA1; the electrophoretic color-changing layer 200 is disposed on one side of the display panel 100; wherein, the electrophoretic color-changing layer 200 includes a plurality of electrophoretic color-changing devices 201, the electrophoretic color-changing devices 201 are disposed corresponding to the transparent sub-areas AA2, and the electrophoretic color-changing devices 201 can be switched between two states of transparent and opaque.

[0048] Specifically, as Figure 1 shown, the display device 1000 includes a display area AA and a non-display area BB that at least partially surrounds the display area AA. The non-display area BB can also completely surround the display area AA. For example, the non-display area BB surrounds the display area AA from all around, which is not limited herein.

[0049] Specifically, the display panel 100 can be an organic light-emitting display panel (OLED), the display panel 100 can be a liquid crystal display panel, the display panel 100 can be a micro light-emitting diode display panel, which is not limited herein. In this embodiment, the display panel 100 is taken as an organic light-emitting display panel for illustration.

[0050] ​Specifically, the display area AA includes a plurality of display sub-areas AA1 and a plurality of transparent sub-areas AA2. The display sub-areas AA1 and the transparent sub-areas AA2 are arranged in an array. The display area AA may include a plurality of independent transparent sub-areas AA2. The plurality of transparent sub-areas AA2 are arranged in an array within the display area AA, or the plurality of transparent sub-areas AA2 are arranged in an array between the plurality of display sub-areas AA1.

[0051] Specifically, the display panel 100 includes a substrate 11 and a plurality of light-emitting devices 102 disposed on the substrate 11. The plurality of light-emitting devices 102 may include a plurality of red light-emitting devices, a plurality of green light-emitting devices, and a plurality of blue light-emitting devices, which are not limited herein. The light-emitting device 102 may include an anode 24, a cathode 27, and a light-emitting material layer sandwiched between the anode 24 and the cathode 27.

[0052] Specifically, the light-emitting device 102 is disposed corresponding to the display sub-area AA1. The light-emitting device 102 is disposed in a first opening of the pixel defining layer 25. The size of the display sub-area AA1 may be greater than or equal to the size of the first opening where the light-emitting device 102 is disposed.

[0053] Specifically, the display area AA includes a plurality of display sub-areas AA1 and a plurality of transparent sub-areas AA2. The display sub-areas AA1 are used for displaying images, and the transparent sub-areas AA2 are used for providing a channel for external ambient light to pass through the display device 1000. The external ambient light can pass through the transparent sub-areas AA2 and reach the other side from one side of the display device 1000.

[0054] Specifically, the electrochromic device 201 is disposed corresponding to the transparent sub-area AA2. The electrochromic device 201 includes a first electrode 54 and a second electrode 55. The first electrode 54 is located in the transparent sub-area AA2, or most of the area of the first electrode 54 is located within the transparent sub-area AA2.

[0055] Specifically, the electrochromic layer 200 is disposed on one side of the display panel 100, such as Figure 1 shown, Figure 1 schematically shows that the electrochromic layer 200 is disposed on the side of the encapsulation layer 103 of the display panel 100 away from the substrate 11, Figure 3 schematically shows that the electrochromic layer 200 is disposed on the side of the substrate 11 of the display panel 100 away from the encapsulation layer 103.

[0056] Specifically, the electrochromic layer 200 includes a plurality of electrochromic devices 201. The plurality of electrochromic devices 201 are arranged in an array corresponding to the transparent sub-areas AA2. Although Figures 1 to 7 only one electrochromic device 201 is schematically shown in Figures 1 to 7 it is easy to understand that the display device 1000 in

[0057] Specifically, the electrochromic layer 200 includes a plurality of electrochromic devices 201, which are arranged corresponding to the transparent sub-region AA2. The electrochromic device 201 can switch between two states: transparent and opaque. In this embodiment, the electrochromic devices 201 of the electrochromic layer 200 are arranged corresponding to the transparent sub-region AA2. Taking the display device 1000 used as a glass on a vehicle as an example, one function and effect of the display device 1000 are described in detail. When the display device 1000 displays an image, the electrochromic device 201 can switch to an opaque state to improve the display quality of the image, especially for high-quality low-gray-scale display images, while blocking external heat and ultraviolet rays and avoiding strong light stimulation to the passengers. When the display device 1000 does not display an image and the passengers need to observe the external environment of the vehicle, the electrochromic device 201 can switch to a transparent state, and the display device 1000 has a high transmittance effect, allowing the passengers to observe the outside well.

[0058] Embodiment 2

[0059] This embodiment is the same as or similar to the above embodiment, except that the structure of the display device 1000 is further described.

[0060] In some embodiments, the electrochromic layer 200 includes a first substrate 51, a second substrate 52, and a barrier wall 56. The barrier wall 56 is disposed between the first substrate 51 and the second substrate 52, and the barrier wall 56 surrounds to form a plurality of electrochromic devices 201.

[0061] Specifically, as Figures 1 to 4 shown, the electrochromic device 201 includes charged particles 57 and a solvent 58. The first substrate 51, the second substrate 52, and the barrier wall 56 enclose the electrochromic device 201, and the charged particles 57 and the solvent 58 are disposed in the space enclosed by the first substrate 51, the second substrate 52, and the barrier wall 56.

[0062] Specifically, the barrier wall 56 can be in contact (close contact) with the first substrate 51 and the second substrate 52, or the barrier wall 56 can be adhesively disposed with the first substrate 51 and the second substrate 52.

[0063] Specifically, the barrier wall 56 is an organic material formed on the first substrate 51. For example, the barrier wall 56 is formed on the first substrate 51 by coating, drying, etc. The barrier wall 56 will be introduced in detail in subsequent embodiments.

[0064] Specifically, the setting of the barrier wall 56 prevents the charged particles 57 and the solvent 58 from overflowing or flowing out of the electrochromic device 201, and will not affect other regions such as the display sub-region AA1 or the penetration unit 202.

[0065] In some embodiments, the electrochromic layer 200 further includes a plurality of through units 202, which are provided corresponding to the display sub-region AA1 and are disposed between adjacent electrochromic devices 201.

[0066] Specifically, the electrochromic layer 200 further includes a plurality of through units 202, and the through units 202 provide a transmission channel for the display light emitted by the display sub-region AA1 or the light-emitting device 102.

[0067] Specifically, the through units 202 are provided corresponding to the display sub-region AA1, and the orthographic projection of the through units 202 on the substrate 11 covers the orthographic projection of the display sub-region AA1 on the substrate 11, or the orthographic projection of the through units 202 on the substrate 11 overlaps with the display sub-region AA1 on the substrate 11.

[0068] Specifically, the through units 202 are disposed between adjacent electrochromic devices 201. The through units 202 of the electrochromic layer 200 and the electrochromic devices 201 may be alternately arranged, or the through units 202 of the electrochromic layer 200 and the electrochromic devices 201 may be arranged in an array.

[0069] Specifically, the through units 202 may be filled with air, transparent adhesive materials, etc., or the through units 202 may be set in a vacuum state, which is not limited herein.

[0070] Specifically, the through units 202 can increase the transmittance of the display light emitted by the light-emitting device 102 corresponding to the display sub-region AA1, so that more display light can be emitted and reach the human eye.

[0071] In some embodiments, the electrochromic layer 200 further includes a sealing frame adhesive 53 bonded between the first substrate 51 and the second substrate 52. The sealing frame adhesive 53 is disposed between the first substrate 51 and the second substrate 52 and is disposed in the non-display area.

[0072] Specifically, the electrochromic layer 200 seals the first substrate 51 and the second substrate 52 through the sealing frame adhesive 53. The sealing frame adhesive 53 fixes the first substrate 51 and the second substrate 52, improves the mechanical strength of the electrochromic layer 200, and prevents the first substrate 51 and the second substrate 52 from separating.

[0073] Specifically, the sealing frame adhesive 53 is disposed in the non-display area, so that the sealing frame adhesive 53 will not interfere with or block the image display of the display panel 100, and the display effect is improved.

[0074] In some embodiments, the electrochromic layer 200 further includes a first electrode layer 50. The first electrode layer 50 includes a first electrode 54 and a second electrode 55 corresponding to each electrochromic device 201. The first electrode 54 and the second electrode 55 in the same electrochromic device 201 are spaced apart. Each electrochromic device 201 further includes charged particles 57 disposed on one side of the first electrode 54 and the second electrode 55. The charged particles 57 can move in the electrochromic device 201 as the voltage between the first electrode 54 and the second electrode 55 changes.

[0075] Specifically, after being patterned, the first electrode layer 50 at least includes the first electrode 54 and the second electrode 55. Each electrochromic device 20 corresponds to one first electrode 54 and one second electrode 55.

[0076] Specifically, each electrochromic device 20 further includes a solvent 58. That is, each electrochromic device 20 includes the first electrode 54, the second electrode 55, the charged particles 57, and the solvent 58. As the voltage between the first electrode 54 and the second electrode 55 changes, the charged particles 57 move in the solvent 58 to achieve the effects of the embodiments of the present application, enabling the electrochromic device 201 to transition between a transparent state and an opaque state.

[0077] Embodiment Three

[0078] This embodiment is the same as or similar to the above embodiments, except that the structure of the display device 1000 is further described.

[0079] In some embodiments, both the first electrode 54 and the second electrode 55 are disposed on the first substrate 51, or both the first electrode 54 and the second electrode 55 are disposed on the second substrate 52.

[0080] Specifically, both the first electrode 54 and the second electrode 55 are disposed on the first substrate 51, or both the first electrode 54 and the second electrode 55 are disposed on the second substrate 52, such that by patterning a conductive material such as metal on the first substrate 51 or the second substrate 52, the first electrode 54 and the second electrode 55 can be formed simultaneously, which can simplify the production process and also well achieve the transition of the display device 1000 between a transparent state and an opaque state.

[0081] Specifically, Figures 1 to 4 As shown, an example illustrates that both the first electrode 54 and the second electrode 55 are disposed on the first substrate 51.

[0082] In some embodiments, the barrier wall 56 is at least partially disposed on the first electrode 54 or the second electrode 55.

[0083] Specifically, the barrier wall 56 is at least partially disposed on the first electrode 54, that is, the orthographic projection of the first electrode 54 on the first substrate 51 at least partially overlaps with the orthographic projection of the corresponding barrier wall 56 on the first substrate 51; the barrier wall 56 is at least partially disposed on the second electrode 55, that is, the orthographic projection of the second electrode 55 on the first substrate 51 at least partially overlaps with the orthographic projection of the corresponding barrier wall 56 on the first substrate 51.

[0084] Specifically, the barrier wall 56 is at least partially disposed on the first electrode 54, so that the area occupied by the first electrode 54 and the barrier wall 56 on the first substrate 51 is reduced, and the electrophoretic color-changing device 201 can be made smaller, which is convenient for increasing the area of the first electrode 54 corresponding to the transparent sub-region AA2; the barrier wall 56 is at least partially disposed on the second electrode 55, so that the area occupied by the second electrode 55 and the barrier wall 56 on the first substrate 51 is reduced, and the electrophoretic color-changing device 201 can be made smaller, which is convenient for increasing the area of the first electrode 54 corresponding to the transparent sub-region AA2.

[0085] In some embodiments, the first electrode 54 is a transparent electrode, and the first electrode 54 is disposed corresponding to the transparent sub-region AA2.

[0086] Specifically, the first electrode 54 is disposed corresponding to the transparent sub-region AA2, the first electrode 54 is located in the transparent sub-region AA2, or most of the region of the first electrode 54 is within the transparent sub-region AA2.

[0087] Specifically, the display device 1000 is switched between a transparent state and an opaque state by whether the charged particles 57 aggregate on the first electrode 54.

[0088] Specifically, the first electrode 54 can be indium tin oxide (ITO).

[0089] Specifically, the first electrode 54 is a transparent electrode. When the transparent sub-region AA2 of the display device 1000 is in a transparent state, the transmittance of external ambient light passing through the display device 1000 can be increased.

[0090] In some embodiments, the display region AA further includes a non-transparent sub-region AA3 between the display sub-region AA1 and the transparent sub-region AA2, and at least part of the second electrode 55 is disposed corresponding to the non-transparent sub-region AA3.

[0091] Specifically, at least part of the second electrode 55 is disposed corresponding to the non-transparent sub-region AA3. The display panel 100 includes a shielding portion 80 (such as Figure 2 shown by the dashed line box) formed by structures such as a driving circuit, a trace, and an electrode. Part of the region of the shielding portion 80 is within the non-transparent sub-region AA3.

[0092] Specifically, at least a part of the second electrode 55 corresponds to the non-transparent sub-region AA3, a part of the second electrode 55 is disposed in the non-transparent sub-region AA3, or the second electrode 55 is entirely disposed in the non-transparent sub-region AA3.

[0093] Specifically, the second electrode 55 can be made of the same material as the first electrode 54 and manufactured by the same process.

[0094] Specifically, the second electrode 55 can be made of a material different from that of the first electrode 54. For example, the second electrode 55 is a non-transparent material.

[0095] Specifically, Figure 1 and Figure 2 It is illustrated that the first electrode 54 and the second electrode 55 are disposed on the first substrate 51, and the barrier wall 56 is disposed on the first electrode 54 and the second electrode 55.

[0096] Specifically, by disposing at least a part of the second electrode 55 corresponding to the non-transparent sub-region AA3, the occupation of the second electrode 55 on the transparent sub-region AA2 can be reduced or avoided, and the interference or occlusion of the transparent sub-region by the charged particles 57 when they gather on the second electrode 55 can be avoided.

[0097] Embodiment 4

[0098] This embodiment is the same as or similar to the above embodiments, except that the structure of the display device 1000 is further described.

[0099] Further, in some embodiments, the first substrate 51 of the electrophoretic color-changing layer 200 shares the layer structure of the display panel 100.

[0100] Specifically, the sharing of the layer structure of the first substrate 51 of the electrophoretic color-changing layer 200 and the display panel 100 means that the layer structure of the display panel 100 can be used as the first substrate 51 of the electrophoretic color-changing layer 200, including the cases where the first substrate 51 is the base 11 or the encapsulation layer 103 of the display panel 100. This can reduce the thickness of the display device 1000, improve the transmittance of the display sub-region AA1 and the transparent sub-region AA2, and at the same time, directly fabricate other components and structures of the electrophoretic color-changing layer 200 on the base 11 or the encapsulation layer 103, which can reduce the manufacturing process steps.

[0101] In some embodiments, the display panel 100 further includes an encapsulation layer 103 disposed on the side of the light-emitting device 102 away from the base 11, and the first substrate 51 is the base 11 or the encapsulation layer 103 of the display panel 100.

[0102] Specifically, as Figures 1 to 3As shown, the first substrate 51 is the base 11 or the encapsulation layer 103 of the display panel 100, which can reduce the thickness of the display device 1000, improve the transmittance of the display sub-region AA1 and the transparent sub-region AA2, and at the same time directly fabricate other components and structures of the electrophoretic color-changing layer 200 on the base 11 or the encapsulation layer 103, which can reduce the manufacturing process steps.

[0103] It should be noted that, as Figure 4 shown, the electrophoretic color-changing layer 200 can also be attached to one side of the display panel 100. The first substrate 51 and the second substrate 52 of the electrophoretic color-changing layer 200 do not share the layer structure of the display panel 100, and the first substrate 51 of the electrophoretic color-changing layer 200 is attached to the display panel 100 through materials such as optical glue (not shown in the figure).

[0104] In some embodiments, the first substrate 51 is the encapsulation layer 103, and both the first electrode 54 and the second electrode 55 are disposed on the encapsulation layer 103.

[0105] Specifically, when the first substrate 51 is the encapsulation layer 103 and both the first electrode 54 and the second electrode 55 are disposed on the encapsulation layer 103, the first electrode 54 and the second electrode 55 can be directly formed on the encapsulation layer 103, and at least part of the manufacturing process of the electrophoretic color-changing layer 200 can be shared with the manufacturing process of the display panel 100, reducing the process production steps and the production cost.

[0106] In some embodiments, the barrier wall 56 is an organic material formed on the first substrate 51.

[0107] Specifically, when the barrier wall 56 is an organic material, the barrier wall 56 can undergo a certain degree of deformation, thereby improving the impact resistance of the electrophoretic color-changing layer 200.

[0108] Specifically, the barrier wall 56 can include a first sub-barrier wall layer 561 and a second sub-barrier wall layer 562, and the first sub-barrier wall layer 561 and the second sub-barrier wall layer 562 can be made of the same material as the pixel definition layer 25 or / and the support column 26 in the display panel 100, without the need to select additional materials, which can reduce the production cost.

[0109] Specifically, the barrier wall 56 can include one of the first sub-barrier wall layer 561 and the second sub-barrier wall layer 562, and the first sub-barrier wall layer 561 or the second sub-barrier wall layer 562 is directly fabricated into the required height.

[0110] Specifically, the barrier wall 56 may include a first sub-barrier wall layer 561 and a second sub-barrier wall layer 562. The first sub-barrier wall layer 561 is disposed on the first substrate 51, and the second sub-barrier wall layer 562 is disposed on the first sub-barrier wall layer 561. The second sub-barrier wall layer 562 contacts the second substrate 52 or is adhesively disposed with the second substrate 52. By providing the barrier wall 56 with a two-layer or multi-layer structure, a barrier wall 56 with a relatively high height can be formed to meet the requirements of the electrophoretic color-changing layer 200.

[0111] Embodiment 5

[0112] This embodiment is the same as or similar to the above embodiments, except that the structure of the display device 1000 is further described.

[0113] In some embodiments, the display panel 100 further includes a packaging layer 103, and a transistor 70 (as shown by the dashed box in Figure 2 ), and an opening 91 disposed between the substrate 11 and the packaging layer 103. The light-emitting device 102 is disposed on the transistor 70, the packaging layer 103 is disposed on the light-emitting device 102, the opening 91 corresponds to the transparent sub-region AA2, the opening 91 at least penetrates the film layer of the inorganic material of the transistor 70, and the filling material 92 in the opening 91 includes an organic material.

[0114] Specifically, the display panel 100 includes a substrate 11, a transistor 70 disposed on the substrate 11, a light-emitting device 102 disposed on the transistor 70, and a packaging layer 103 disposed on the light-emitting device 102. The transistor 70 includes a semiconductor layer 16, a gate insulating layer 17, a gate 18, an interlayer insulating layer 21, a source electrode 71, and a drain electrode 72. The opening 91 at least penetrates the film layer of the inorganic material of the transistor 70, that is, the opening 91 at least penetrates the gate insulating layer 17 and the interlayer insulating layer 21.

[0115] Specifically, when the display panel 100 further includes a film layer of other inorganic materials disposed on the substrate 11, or when the transistor 70 further includes a film layer of other inorganic materials, the opening 91 may further penetrate the film layer of other inorganic materials.

[0116] Specifically, as Figure 1 and Figure 2As shown, a structure of the display panel 100 is schematically illustrated by way of example. The layer structure of the display panel sequentially includes: a substrate 11, a buffer layer 15, a semiconductor layer 16, a gate insulating layer 17, a gate 18, a first insulating layer 19, a first metal layer 20, an interlayer insulating layer 21, a second metal layer 22, a planarization layer 23, an anode 24, a pixel definition layer 25, a support pillar 26, a cathode 27, and a packaging layer 103. Among them, the packaging layer 103 includes a first inorganic layer packaging 28, a first organic layer packaging 29, and a second organic layer packaging 30. The packaging layer 103 is a multi-layer stacked structure of an inorganic layer and an organic layer. Among them, the second metal layer 22 includes a source electrode 71 and a drain electrode 72.

[0117] Specifically, as Figure 1 and Figure 2 shown, it is schematically illustrated by way of example that the opening 91 penetrates through the buffer layer 15, the gate insulating layer 17, the first insulating layer 19, the interlayer insulating layer 21, the planarization layer 23, the pixel definition layer 25, and the cathode 27.

[0118] Specifically, the opening 91 is provided corresponding to the transparent sub-region AA2, that is, the opening 91 is located within the transparent sub-region AA2.

[0119] Specifically, the filling material 92 within the opening 91 includes an organic material. The organic material has a very high transmittance, specifically a transparent organic material, which can improve the transmittance of the transparent sub-region.

[0120] Furthermore, in some embodiments, the packaging layer 103 is filled within the opening 91.

[0121] Specifically, filling the packaging layer 103 within the opening 91 can prevent moisture and oxygen from entering the display panel 100 through the opening 91 part, and improve the lifespan and reliability of the display panel 100.

[0122] Embodiment Six

[0123] This embodiment is the same as or similar to any one of the above embodiments of the display device, except that: the structure of the display device 1000 in any one of the above embodiments is further described, especially regarding Figure 1 and Figure 2 the structure of the display device 1000 in the embodiment shown.

[0124] Please refer to Figure 5 、 Figure 6 and Figure 7 , Figure 5 which is a schematic cross-sectional structure diagram of a fifth type of the display device 1000 provided by the embodiments of the present application; Figure 6 which is a top view schematic diagram of a partial structure of an electrophoretic color-changing layer of the display device 1000 provided by the embodiments of the present application; Figure 7A partial top view schematic diagram of a first electrode of a display device 1000 provided by an embodiment of the present application.

[0125] In some embodiments, the electrophoretic color-changing layer 200 further includes a second electrode layer 49 and a spacer insulating layer 492 disposed on the first substrate 51 or the second substrate 52. The second electrode layer 49 is disposed between the first electrode layer 50 and the first substrate 51 or between the first electrode layer 50 and the second substrate 52. The spacer insulating layer 492 is disposed between the first electrode layer 50 and the second electrode layer 49. The first electrode layer 50 and the second electrode layer 49 are disposed on the same substrate. The first electrode layer 50 further includes a connection electrode 541, and the connection electrode 541 is connected between two adjacent first electrodes 54. The second electrode layer 49 further includes a first trace 491, and a plurality of second electrodes 55 are electrically connected through the first trace 491.

[0126] Specifically, the setting situations of the first electrode layer 50 and the second electrode layer 49 include: a), both the first electrode layer 50 and the second electrode layer 49 are disposed on the first substrate 51. The second electrode layer 49 is disposed on the first substrate 51, the spacer insulating layer 492 is disposed on the second electrode layer 49, the first electrode layer 50 is disposed on the spacer insulating layer 492, and the charged particles 57 are disposed on the side of the first electrode layer 50 away from the second electrode layer 49; b), both the first electrode layer 50 and the second electrode layer 49 are disposed on the second substrate 52. The second electrode layer 49 is disposed on the second substrate 52, the spacer insulating layer 492 is disposed on the second electrode layer 49, the first electrode layer 50 is disposed on the spacer insulating layer 492, and the charged particles 57 are disposed on the side of the first electrode layer 50 away from the second electrode layer 49.

[0127] Specifically, after being patterned, the first electrode layer 50 includes a first electrode 54, a second electrode 55, and a connection electrode 541. The two first electrodes 54 corresponding to two adjacent electrophoretic color-changing devices 201 are connected through the connection electrode 541, so that the plurality of first electrodes 54 corresponding to the plurality of electrophoretic color-changing devices 201 in the electrophoretic color-changing layer 200 can be electrically connected together through a plurality of connection electrodes 541.

[0128] Specifically, after being patterned, the second electrode layer 49 includes a first trace 491, and a plurality of second electrodes 55 are electrically connected through the first trace 491. The electrical signals of the plurality of second electrodes 55 are supplied through the first trace 491, so that the plurality of second electrodes 55 corresponding to the plurality of electrophoretic color-changing devices 201 in the electrophoretic color-changing layer 200 can be electrically connected together through a plurality of first traces 491.

[0129] In some embodiments, at least three light-emitting devices 102 of different colors are located in one display sub-region AA1, a transparent sub-region AA2 is located between two adjacent display sub-regions AA1, and the second electrode 55 is disposed on at least one side of the first electrode 54.

[0130] Specifically, as Figure 6 shown, for example, one green light-emitting device 1021, two blue light-emitting devices 1022, and one red light-emitting device 1023 are located in a display sub-region AA1, but it is not limited thereto.

[0131] Specifically, the second electrode 55 is disposed on at least one side of the first electrode 54. The second electrode 55 corresponding to one electrophoretic color-changing device 201 may include one or more of a first sub-electrode 551, a second sub-electrode 552, a third sub-electrode 553, and a fourth sub-electrode 554. When the second electrode 55 corresponding to one electrophoretic color-changing device 201 includes one of the first sub-electrode 551, the second sub-electrode 552, the third sub-electrode 553, and the fourth sub-electrode 554, the second electrode 55 is disposed on one side of the first electrode 54; when the second electrode 55 corresponding to one electrophoretic color-changing device 201 includes two of the first sub-electrode 551, the second sub-electrode 552, the third sub-electrode 553, and the fourth sub-electrode 554, the second electrode 55 is disposed on both sides of the first electrode 54; this will not be elaborated here.

[0132] Embodiment Seven

[0133] This embodiment is the same as or similar to the above embodiments, except that the working process of the display device 1000 of any one of the above is described.

[0134] In some embodiments, when a first voltage is applied between the first electrode 54 and the second electrode 55, the charged particles 57 gather on the first electrode 54, and the transparent sub-region AA2 becomes opaque; when a second voltage is applied between the first electrode 54 and the second electrode 55, the charged particles 57 gather on the second electrode 55, and the transparent sub-region AA2 becomes transparent; wherein, the first voltage and the second voltage are reverse voltages.

[0135] Specifically, as Figure 8 shown, when a first voltage is applied between the first electrode 54 and the second electrode 55, the charged particles 57 gather on the first electrode 54, and the charged particles 57 block the transparent sub-region AA2, and the transparent sub-region AA2 becomes opaque. Taking the display device 1000 used as a glass on a vehicle as an example, one function and effect of the display device 1000 are described in detail. When the display device 1000 displays an image, the electrophoretic color-changing device 201 can be transformed into an opaque state to improve the display quality of the image, especially to be able to have a high-quality low gray-scale display image, and at the same time can block external heat and ultraviolet rays to avoid strong light stimulation to the passengers.

[0136] Specifically, as Figure 9As shown, when a second voltage is applied between the first electrode 54 and the second electrode 55, the charged particles 57 gather on the second electrode 55. The charged particles 57 do not block the transparent sub-region AA2, and the transparent sub-region AA2 is in a transparent state. When the display device 1000 does not display an image and the occupant needs to observe the external environment of the vehicle, the electrochromic device 201 can be transformed into a transparent state, and the display device 1000 has a high transmittance effect, so that the occupant can observe the outside well.

[0137] In some embodiments, when a third voltage is applied between the first electrode 54 and the second electrode 55, the charged particles 57 are distributed on the first electrode 54 and the second electrode 55, and the transparent sub-region AA2 is in a grayscale state. The absolute value of the third voltage is less than the absolute values of the first voltage and the second voltage.

[0138] Specifically, as Figure 10 shown, the third voltage is an intermediate voltage between the first voltage and the second voltage, so that some of the charged particles 57 are distributed on the first electrode 54 and some of the charged particles 57 are distributed on the second electrode 55. The charged particles 57 partially block the transparent sub-region AA2, which can improve the contrast of the low grayscale image. At this time, the occupant can not only view an image with good display quality, but also observe the external situation of the vehicle at the same time.

[0139] Specifically, as Figure 10 shown, or when no third voltage is applied between the first electrode 54 and the second electrode 55, that is, when the third voltage is 0V, the transparent sub-region AA2 is also in a grayscale state.

[0140] It should be noted that Figure 5 the first state of the display device 1000 shown is an opaque state; Figure 6 the second state of the display device 1000 shown is a transparent state; Figure 10 the third state of the display device 1000 shown is a grayscale state.

[0141] It should be noted that when the charged particles 57 are black charged particles, the first state or the opaque state of the display device 1000 is the black state of the electrochromic device 201.

[0142] It should be noted that in any of the display panels in the above embodiments, the charged particles 57 can be black charged particles. The charged particles 57 can carry positive or negative charges. The charged particles 57 can be black particles such as TiOx, carbon black, and aniline black wrapped by a spherical resin material. The resin material can be polyethylene, polystyrene, polyacrylate, polyester, etc. The diameter of the charged particles 57 is preferably less than 0.5 microns, and more preferably less than 0.1 microns, for example, 20 nanometers to 50 nanometers. The smaller the diameter of the charged particles, the more beneficial it is to improve the opacity of the opaque state. A plurality of black particles can be evenly dispersed in the spherical resin material.

[0143] It should be noted that in any of the display panels in the above embodiments, the sealing frame adhesive 53 can be a UV adhesive (ultraviolet curable adhesive).

[0144] It should be noted that in any of the display panels in the above embodiments, the solvent 58 is a transparent insulating organic solvent. The main components of the solvent 58 can be hydrocarbon-based organic solvents such as benzene, toluene, xylene, or cyclohexane. The solvent 58 can also contain at least one of a dispersant, a surfactant, a decomposition stabilizer, a light stabilizer, a charge control agent, and a low volatile component. To reduce the resistance of particle movement and thereby reduce the driving voltage of the first electrode 54 and the second electrode 55, the viscosity of the solvent 58 is preferably less than 40 mPa·s.

[0145] It should be noted that the substrate 11 can be a flexible substrate. When the substrate 11 is a flexible substrate, the substrate 11 can include a first sub-substrate 131, a second sub-substrate 133, and a second insulating layer 132 sandwiched between the first sub-substrate 131 and the second sub-substrate 133. The substrate 11 can also include a light-shielding layer 12 disposed between the first sub-substrate 131 and the second sub-substrate 133, which is not limited herein.

[0146] It should be noted that the first trace 491 or / and the connection electrode 541 can extend to the non-display area BB and be electrically connected to the driving chip in the non-display area BB by means of dot silver paste, bonding, etc.

[0147] Embodiment Seven

[0148] The embodiment of the present application also provides a vehicle 2000, including the display device 1000 of any of the above.

[0149] Please refer to Figure 11 , Figure 11 which is a schematic diagram of a vehicle provided by the embodiment of the present application.

[0150] Specifically, as Figure 11As shown, vehicle 2000 includes glass 2001, such as a window glass. The display device 1000 can be used on the glass 2001, or the display device 1000 directly serves as the glass 2001, so that the vehicle 2000 has the beneficial effects described by the display device 1000 in the above embodiments, which will not be elaborated here.

[0151] The above has introduced in detail a display panel and a vehicle provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A display device, characterized in that, it includes a display area and at least partially a non-display area surrounding the display area. The display area includes a plurality of display sub-areas and a plurality of transparent sub-areas. The display sub-areas and the transparent sub-areas are arranged in an array. The display device includes: a display panel, including a substrate and a plurality of light-emitting devices disposed on the substrate, and the light-emitting devices are disposed corresponding to the display sub-areas; an electrophoretic color-changing layer, disposed on a side of the light-emitting device away from the substrate; wherein, the electrophoretic color-changing layer includes a plurality of electrophoretic color-changing devices and barrier walls surrounding the electrophoretic color-changing devices. The electrophoretic color-changing devices are disposed corresponding to the transparent sub-areas, and the electrophoretic color-changing devices can be switched between two states of transparent and opaque; the display panel further includes a packaging layer, and a transistor and an opening disposed between the substrate and the packaging layer. The opening at least penetrates a film layer of the inorganic material of the transistor, and a filling material in the opening includes an organic material; the light-emitting device is disposed on the transistor, the packaging layer is disposed on the light-emitting device, the opening is disposed corresponding to the transparent sub-areas, the electrophoretic color-changing devices are disposed corresponding to the opening, and are located on a side of the packaging layer away from the opening; the barrier walls include a first sub-barrier wall layer and a second sub-barrier wall layer, and the second sub-barrier wall layer is disposed on a side of the first sub-barrier wall layer away from the packaging layer.

2. The display device according to claim 1, characterized in that, the electrophoretic color-changing layer includes a first substrate and a second substrate, and the barrier walls are disposed between the first substrate and the second substrate, and the barrier walls surround to form a plurality of the electrophoretic color-changing devices.

3. The display device according to claim 2, characterized in that, the electrophoretic color-changing layer further includes a plurality of penetration units, the penetration units are disposed corresponding to the display sub-areas, and are disposed between adjacent electrophoretic color-changing devices.

4. The display device according to claim 2, characterized in that, the electrophoretic color-changing layer further includes a sealing frame adhesive bonded between the first substrate and the second substrate, the sealing frame adhesive is disposed between the first substrate and the second substrate, and the sealing frame adhesive is disposed in the non-display area.

5. The display device according to any one of claims 2 to 4, characterized in that, the electrophoretic color-changing layer further includes a first electrode layer, the first electrode layer includes a first electrode and a second electrode corresponding to each electrophoretic color-changing device. The first electrode and the second electrode in the same electrophoretic color-changing device are spaced apart. Each electrophoretic color-changing device further includes charged particles disposed on one side of the first electrode and the second electrode, and the charged particles can move in the electrophoretic color-changing device along with a voltage change between the first electrode and the second electrode.

6. The display device according to claim 5, characterized in that, the first electrode layer is disposed on the first substrate or the second substrate.

7. The display device according to claim 6, characterized in that, the first electrode is a transparent electrode, and the first electrode is disposed corresponding to the transparent sub-areas.

8. The display device according to claim 7, wherein, the display area further includes an opaque sub-area between the display sub-area and the transparent sub-area, and at least a part of the second electrode is disposed corresponding to the opaque sub-area.

9. The display device according to claim 8, wherein, the electrophoretic color-changing layer further includes a second electrode layer and a spacer insulating layer disposed on the first substrate or the second substrate. The second electrode layer is disposed between the first electrode layer and the first substrate or between the first electrode layer and the second substrate. The spacer insulating layer is disposed between the first electrode layer and the second electrode layer, and the first electrode layer and the second electrode layer are disposed on the same substrate; the first electrode layer further includes a connecting electrode, and the connecting electrode is connected between two adjacent first electrodes; the second electrode layer further includes a first trace, and a plurality of the second electrodes are electrically connected through the first trace.

10. The display device according to claim 5, wherein, at least three light-emitting devices of different colors are located in one display sub-area, the transparent sub-area is located between two adjacent display sub-areas, and the second electrode is disposed on at least one side of the first electrode.

11. The display device according to claim 6, wherein, at least a part of the barrier wall is disposed on the first electrode or the second electrode.

12. The display device according to claim 6, wherein, the display panel further includes a packaging layer disposed on a side of the light-emitting device away from the substrate, and the first substrate is the substrate or the packaging layer of the display panel.

13. The display device according to claim 12, wherein, the first substrate is the packaging layer, and the first electrode and the second electrode are both disposed on the packaging layer.

14. The display device according to claim 12, wherein, the barrier wall is an organic material formed on the first substrate.

15. The display device according to claim 5, wherein, when a first voltage is applied between the first electrode and the second electrode, the charged particles gather on the first electrode, and the transparent sub-area is in an opaque state; when a second voltage is applied between the first electrode and the second electrode, the charged particles gather on the second electrode, and the transparent sub-area is in a transparent state; wherein, the first voltage and the second voltage are reverse voltages.

16. The display device according to claim 15, wherein, when a third voltage is applied between the first electrode and the second electrode, the charged particles are distributed on the first electrode and the second electrode, and the transparent sub-area is in a grayscale state. The absolute value of the third voltage is less than the absolute values of the first voltage and the second voltage.

17. A vehicle, wherein, it includes the display device according to any one of claims 1 to 16.

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