Display device and vehicle

Abstract

The present application discloses a display device and a vehicle, relating to the field of display technology. An electrochromic component is attached to the light-emitting surface of the display panel in the display device, and the electrochromic unit in the electrochromic unit can present a mirror state or transmit external ambient light under the drive of a drive circuit. When the electrochromic unit transmits external ambient light, the display device can display images normally. When the electrochromic unit presents a mirror state, the display device can act as a mirror to present an image of an object. That is to say, in addition to displaying images, the display device can also act as a mirror, with relatively high flexibility.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to a display device and a vehicle. Background Art

[0002] Organic Light Emitting Diode (OLED) display panels have been widely used due to their self-luminous, low driving voltage, fast response and other characteristics.

[0003] In related technologies, OLED display panels can only display images, but have poor flexibility. Summary of the Invention

[0004] This application provides a display device and a vehicle, which can solve the problem of poor flexibility of OLED display panels in related technologies. The technical solutions are as follows:

[0005] On the one hand, a display device is provided, and the display device includes:

[0006] A display panel;

[0007] An electrochromic component, the electrochromic component is attached to the light-emitting surface of the display panel, and the electrochromic component includes at least one electrochromic unit;

[0008] And at least one driving circuit corresponding to the at least one electrochromic unit one by one, each driving circuit is connected to a corresponding electrochromic unit, and is used to drive the electrochromic unit to present a mirror state or transmit external ambient light.

[0009] Optionally, the orthographic projection of the at least one driving circuit on the display panel does not overlap with the orthographic projection of the electrochromic component on the display panel.

[0010] Optionally, the electrochromic unit includes: a first electrode, a second electrode, and an electrolyte located between the first electrode and the second electrode;

[0011] The driving circuit is respectively connected to the first electrode and the second electrode, and the driving circuit is used to provide a first power signal for the first electrode and a second power signal for the second electrode;

[0012] Ions in the electrolyte move or remain stationary under the action of the first power signal and the second power signal.

[0013] Optionally, both the first electrode and the second electrode are transparent conductive glasses of fluorine-doped tin dioxide without titanium dioxide modification; the material of the electrolyte includes: silver nitrate;

[0014] The silver ions in the silver nitrate move towards the direction close to the first electrode, or towards the direction close to the second electrode, or remain stationary under the action of the first power signal and the second power signal.

[0015] Optionally, the first electrode is a transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification, and the second electrode is a transparent conductive glass of fluorine-doped tin dioxide modified with titanium dioxide; the material of the electrolyte includes: silver nitrate;

[0016] The silver ions in the silver nitrate move towards the direction close to the first electrode, or towards the direction close to the second electrode, or remain stationary under the action of the first power signal and the second power signal.

[0017] Optionally, the potential of the first power signal is lower than the potential of the second power signal;

[0018] The silver ions move towards the direction close to the first electrode under the action of the first power signal and the second power signal, making the electrochromic unit present a mirror state.

[0019] Optionally, the potential of the first power signal is higher than the potential of the second power signal;

[0020] The silver ions move towards the direction close to the second electrode under the action of the first power signal and the second power signal, making the electrochromic unit absorb the ambient light from the outside.

[0021] Optionally, the potential of the first power signal is equal to the potential of the second power signal;

[0022] The silver ions remain stationary under the action of the first power signal and the second power signal, making the electrochromic unit transmit the ambient light from the outside.

[0023] Optionally, the display panel has a first area, a second area surrounding the first area, and a third area surrounding the second area;

[0024] The at least one electrochromic unit includes: at least one first type of electrochromic unit, at least one second type of electrochromic unit, and at least one third type of electrochromic unit;

[0025] Wherein, the orthographic projection of the at least one first type of electrochromic unit on the display panel is located in the first area, the orthographic projection of the at least one second type of electrochromic unit on the display panel is located in the second area, and the orthographic projection of the at least one third type of electrochromic unit on the display panel is located in the third area.

[0026] Optionally, the first electrode is closer to the light-emitting surface of the display panel than the second electrode.

[0027] A first type of driving circuit in the at least one driving circuit is configured to: provide the first power signal to the first electrode in the first type of electrochromic unit and provide the second power signal to the second electrode in the first type of electrochromic unit during a first time period;

[0028] A second type of driving circuit in the at least one driving circuit is configured to provide the first power signal to the first electrode in the second type of electrochromic unit and provide the second power signal to the second electrode in the second type of electrochromic unit during a second time period;

[0029] A third type of driving circuit in the at least one driving circuit is configured to: provide the first power signal to the first electrode in the third type of electrochromic unit and provide the second power signal to the second electrode in the third type of electrochromic unit during a third time period;

[0030] Wherein, the potential of the first power signal is lower than the potential of the second power signal; the duration of the third time period is greater than the duration of the second time period, and the duration of the second time period is greater than the duration of the first time period.

[0031] Optionally, the display panel has a first region and a second region located on one side of the first region;

[0032] The at least one electrochromic unit includes: at least one first type of electrochromic unit and at least one second type of electrochromic unit;

[0033] Wherein, the orthographic projection of the at least one first type of electrochromic unit on the display panel is located in the first region, and the orthographic projection of the at least one second type of electrochromic unit on the display panel is located in the second region.

[0034] Optionally, the potential of the first power signal provided by the first type of driving circuit in the at least one driving circuit to the first electrode of the first type of electrochromic unit is lower than the potential of the second power signal provided to the second electrode of the first type of electrochromic unit;

[0035] The potential of the first power signal provided by the second type of driving circuit in the at least one driving circuit to the first electrode of the second type of electrochromic unit is equal to the potential of the second power signal provided to the second electrode of the second type of electrochromic unit.

[0036] Optionally, the display device further includes: a control circuit;

[0037] The control circuit is connected to each of the driving circuits and is configured to provide a first control signal, a second control signal, or a third control signal to the driving circuits;

[0038] The driving circuit is configured to:

[0039] Drive the electrochromic unit to present a mirror state according to the first control signal;

[0040] Drive the electrochromic unit to absorb ambient light from the outside according to the second control signal;

[0041] Drive the electrochromic unit to transmit ambient light from the outside according to the third control signal.

[0042] Optionally, the display device further includes: a plurality of light intensity sensors connected to the control circuit;

[0043] The light intensity sensors are configured to detect the light intensity of ambient light from the outside;

[0044] The control circuit is configured to:

[0045] If the light intensity is greater than or equal to a light intensity threshold, provide the second control signal to the driving circuit;

[0046] If the light intensity is less than the light intensity threshold, provide the third control signal to the driving circuit.

[0047] Optionally, the electrochromic unit includes: a transflective film, a first electrode, a liquid crystal layer, a second electrode, and a polarizer that are sequentially stacked in a direction away from the display panel;

[0048] The driving circuit is respectively connected to the first electrode and the second electrode and is configured to provide a power signal to the first electrode and the second electrode;

[0049] The polarizer is configured to adjust ambient light from the outside into polarized light;

[0050] The liquid crystal molecules in the liquid crystal layer are configured to deflect under the action of the power signal;

[0051] The transflective film is configured to transmit the polarized light or reflect the polarized light.

[0052] Optionally, the display panel is an organic light-emitting diode display panel or a liquid crystal display panel.

[0053] On the other hand, a vehicle is provided, which includes a vehicle body and an on-vehicle rearview mirror disposed on the vehicle body, and the on-vehicle rearview mirror includes the display device described in the above aspect.

[0054] The beneficial effects brought by the technical solution provided in this application at least include:

[0055] This application provides a display device and a vehicle. An electrochromic component is attached to the light-emitting surface of the display panel in the display device, and the electrochromic unit in the electrochromic unit can present a mirror state or transmit external ambient light under the drive of a drive circuit. When the electrochromic unit transmits external ambient light, the display device can display an image normally. When the electrochromic unit presents a mirror state, the display device can act as a mirror to present an image of an object. That is to say, in addition to being able to display an image, the display device can also act as a mirror, with relatively high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0057] Figure 1 is a schematic structural diagram of a display device provided in an embodiment of this application;

[0058] Figure 2 is Figure 1 a top view of the electrochromic component shown;

[0059] Figure 3 is a schematic structural diagram of an electrochromic unit and a display panel provided in an embodiment of this application;

[0060] Figure 4 is a schematic structural diagram of another electrochromic unit and a display panel provided in an embodiment of this application;

[0061] Figure 5 is a schematic structural diagram of yet another electrochromic unit and a display panel provided in an embodiment of this application;

[0062] Figure 6 is a schematic structural diagram of a display panel provided in an embodiment of this application;

[0063] Figure 7 is a schematic structural diagram of an electrochromic component provided in an embodiment of this application;

[0064] Figure 8 is a schematic diagram of the relationship between potential and time provided in an embodiment of this application;

[0065] Figure 9 is a schematic structural diagram of another display panel provided in an embodiment of this application;

[0066] Figure 10 It is a schematic structural diagram of another electrochromic component provided by an embodiment of the present application;

[0067] Figure 11 It is a schematic diagram of the effect of a display device provided by an embodiment of the present application;

[0068] Figure 12 It is a schematic structural diagram of another display device provided by an embodiment of the present application;

[0069] Figure 13 It is a schematic structural diagram of another electrochromic unit and display panel provided by an embodiment of the present application;

[0070] Figure 14 It is a schematic structural diagram of a vehicle provided by an embodiment of the present application;

[0071] Figure 15 It is a schematic diagram of the effect of another display device provided by an embodiment of the present application;

[0072] Figure 16 It is a schematic diagram of the effect of yet another display device provided by an embodiment of the present application;

[0073] Figure 17 It is a schematic diagram of the effect of still another display device provided by an embodiment of the present application. Detailed implementation manners

[0074] To make the objectives, technical solutions, and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the accompanying drawings.

[0075] Figure 1 It is a schematic structural diagram of a display device provided by an embodiment of the present application. Referring to Figure 1 It can be seen that the display device 10 may include: a display panel 101, an electrochromic component 102, and at least one driving circuit 103. The electrochromic component 102 may be attached to the light-emitting surface of the display panel 101. Referring to Figure 1 , the electrochromic component 102 may include at least one electrochromic unit 1021.

[0076] Figure 2 is Figure 1 a top view of the electrochromic component shown. Referring to Figure 2 It can be seen that the electrochromic component 102 may include a plurality of electrochromic units 1021. Among them, Figure 2 18 electrochromic units 1021 are shown.

[0077] Among them, the at least one electrochromic unit 1021 can correspond one-to-one to at least one driving circuit 103. Each driving circuit 103 can be connected to a corresponding electrochromic unit 1021 for driving the electrochromic unit 1021 to present a mirror state or transmit external ambient light.

[0078] In the embodiment of the present application, the driving circuit 103 can provide a power signal for a corresponding electrochromic unit 1021, and the electrochromic unit 1021 can adjust its own state under the action of the power signal so that the display device 10 achieves different display effects.

[0079] Exemplarily, if the electrochromic unit 1021 presents a mirror state, the electrochromic unit 1021 can act as a mirror to present an image of an object, and the user cannot see the image displayed on the display panel 101 through the electrochromic unit 1021. If the electrochromic unit 1021 transmits external ambient light (i.e., the electrochromic unit 1021 presents a transparent state), the user can see the image displayed on the display panel 101 through the electrochromic unit 1021.

[0080] In summary, the embodiment of the present application provides a display device. An electrochromic component is attached to the light-emitting surface of the display panel in the display device, and the electrochromic unit in the electrochromic unit can present a mirror state or transmit external ambient light under the drive of a driving circuit. When the electrochromic unit transmits external ambient light, the display device can display an image normally. When the electrochromic unit presents a mirror state, the display device can act as a mirror to present an image of an object. That is, the display device can act as a mirror in addition to displaying an image, and has high flexibility.

[0081] In the embodiment of the present application, referring to Figure 1 , the orthographic projection of the at least one driving circuit 103 on the display panel 101 may not overlap with the orthographic projection of the electrochromic component 102 on the display panel 101, so as to prevent the driving circuit 103 from blocking the electrochromic component 102 and affecting the display effect of the display device.

[0082] Optionally, the display panel 101 may be an organic light-emitting diode (OLED) display panel or a liquid crystal display (LCD) display panel.

[0083] Figure 3 It is a schematic structural diagram of an electrochromic unit and a display panel provided by an embodiment of the present application. Referring to Figure 3, the electrochromic unit 1021 may include: a first electrode 10211, a second electrode 10212, and an electrolyte 10213 located between the first electrode 10211 and the second electrode 10212. The driving circuit 103 may be connected to the first electrode 10211 and the second electrode 10212 respectively, and the driving circuit 103 may be configured to provide a first power signal to the first electrode 10211 and a second power signal to the second electrode 10212. Ions in the electrolyte 10213 may move or remain stationary under the action of the first power signal and the second power signal.

[0084] Optionally, the first electrode 10211 and the second electrode 10212 may both be fluorine (F)-doped tin dioxide (SnO 2 ) transparent conductive glass ((SnO2:F), FTO) without titanium dioxide (TiO 2 ) modification. The material of the electrolyte 10213 may include: silver nitrate (AgNO 3 ).

[0085] Silver ions (Ag + ) in the silver nitrate may move towards the first electrode 10211, towards the second electrode 10212, or remain stationary under the action of the first power signal and the second power signal. Thereby, the electrochromic unit 1021 can exhibit different states.

[0086] Exemplarily, silver ions in the silver nitrate move towards the first electrode 10211 and deposit on the first electrode 10211. The deposition layer (mirror surface) of the silver ions may be located on the side of the first electrode 10211 close to the second electrode 10212, that is, the electrochromic unit 1021 can exhibit a mirror surface state. Or, silver ions in the silver nitrate may move towards the second electrode 10212 and deposit on the second electrode 10212. The deposition layer (mirror surface) of the silver ions may be located on the side of the second electrode 10212 close to the first electrode 10211, that is, the electrochromic unit 1021 can exhibit a mirror surface state. Or, silver ions in the silver nitrate remain stationary, that is, suspended between the first electrode 10211 and the second electrode 10212, which can enable the electrochromic unit 1021 to transmit external ambient light (present a transparent state).

[0087] Or, the first electrode 10211 may be fluorine-doped tin dioxide transparent conductive glass without titanium dioxide modification. The second electrode 10212 is fluorine-doped tin dioxide transparent conductive glass modified with titanium dioxide. The material of the electrolyte 10213 may include: silver nitrate.

[0088] Exemplarily, the silver ions in silver nitrate move towards the first electrode 10211 and deposit on the first electrode 10211. The deposited layer (mirror surface) of the silver ions can be located on the side of the first electrode 10211 close to the second electrode 10212, that is, the electrochromic unit 1021 can be made to present a mirror state. The silver ions in silver nitrate move towards the second electrode 10212 and deposit on the second electrode 10212. The deposited layer of the silver ions can be located on the side of the second electrode 10212 close to the first electrode 10211, that is, the electrochromic unit 1021 can absorb the ambient light from the outside (present a black state). The silver ions in silver nitrate remain stationary, that is, suspended between the first electrode 10211 and the second electrode 10212, which can make the electrochromic unit 1021 transmit the ambient light from the outside (present a transparent state).

[0089] Optionally, the electrolyte may further include tetrabutylammonium bromide (TBABr) and copper chloride (CuCl 2 ).

[0090] As a first optional implementation manner, the potential of the first power supply signal provided by the driving circuit 103 for the first electrode 10211 may be higher than the potential of the second power supply signal provided by the driving circuit 103 for the second electrode 10212. The silver ions a1 can move towards the second electrode 10212 with a lower potential under the action of the first power supply signal and the second power supply signal, and deposit on the second electrode 10212.

[0091] If the second electrode 10212 is a transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification, the electrochromic unit 1021 can present a mirror state. If the second electrode 10212 is a transparent conductive glass of fluorine-doped tin dioxide modified with titanium dioxide, the electrochromic unit 1021 can absorb the ambient light from the outside.

[0092] Optionally, the potential of the second power supply signal may be a negative potential, and the potential of the first power supply signal may be a zero potential or a positive potential. Referring to Figure 4 , the driving circuit may be a battery. The negative electrode of the battery may be connected to the second electrode 10212, and the positive electrode of the battery may be connected to the first electrode 10211. Since the silver ions of silver nitrate in the electrolyte 10213 carry positive charges, the silver ions generally can move towards the second electrode 10212 connected to the negative electrode (with negative charges) and form a deposited layer a2 of silver ions on the side of the second electrode 10212 close to the first electrode 10211.

[0093] Exemplarily, the potential of the first power signal can be 2.5V, and the potential of the second power signal can be -2.5V.

[0094] As a second alternative implementation, the potential of the first power signal provided by the driving circuit 103 for the first electrode 10211 can be lower than the potential of the second power signal provided by the driving circuit 103 for the second electrode 10212. Silver ions can move in the direction of the first electrode 10211 with a lower potential under the action of the first power signal and the second power signal, and be deposited on the first electrode 10211. Since the first electrode 10211 is a transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification, the deposition of silver ions on the first electrode 10211 can make the electrochromic unit 1021 present a mirror state.

[0095] Optionally, the potential of the first power signal can be a negative potential, and the potential of the second power signal can be a zero potential or a positive potential. Referring to Figure 5 , the driving circuit can be a battery. The negative electrode of the battery can be connected to the first electrode 10211, and the positive electrode of the battery can be connected to the second electrode 10212. Since the silver ions of silver nitrate in the electrolyte 10213 carry positive charges, the silver ions can move towards the first electrode 10211 connected to the negative electrode (with negative charges), and a deposition layer a1 of silver ions is formed on the side of the first electrode 10211 close to the second electrode 10212.

[0096] Exemplarily, the potential of the first power signal can be -2.5V (volt), and the potential of the second power signal can be 0V.

[0097] As a third alternative implementation, the potential of the first power signal provided by the driving circuit 103 for the first electrode 10211 can be equal to the potential of the second power signal provided by the driving circuit 103 for the second electrode 10212. Silver ions remain stationary under the action of the first power signal and the second power signal, that is, suspended between the first electrode 10211 and the second electrode 10212, whereby the electrochromic unit 1021 can transmit the ambient light from the outside. In this case, the electrochromic unit 1021 can be in a transparent state.

[0098] Since the potential of the first power signal is equal to the potential of the second power signal, the silver ions do not move and exist in the electrolyte 10213 in the form of silver nitrate. Exemplarily, the potential of both the first power signal and the second power signal can be 0V.

[0099] Figure 6 It is a schematic structural diagram of a display panel provided by an embodiment of the present application. Referring to Figure 6It can be seen that the display panel 101 can have a first region 101a, a second region 101b surrounding the first region 101a, and a third region 101c surrounding the second region 101b. And, referring to Figure 7 , at least one electrochromic unit 1021 can include: at least one first type of electrochromic unit 1021a, at least one second type of electrochromic unit 1021b, and at least one third type of electrochromic unit 1021c.

[0100] Among them, the orthographic projection of the at least one first type of electrochromic unit 1021a on the display panel 101 can be located in the first region 101a, the orthographic projection of the at least one second type of electrochromic unit 1021b on the display panel 101 can be located in the second region 101b, and the orthographic projection of the at least one third type of electrochromic unit 1021c on the display panel 101 can be located in the third region 101c.

[0101] Exemplarily, referring to Figure 7 , the at least one electrochromic unit 1021 can include: two first type of electrochromic units 1021a, six second type of electrochromic units 1021b, and ten second type of electrochromic units 1021b.

[0102] In the embodiment of the present application, the first type of driving circuit 103 connected to the first type of electrochromic unit 1021a is used to provide a first power signal for the first electrode 10211 in the first type of electrochromic unit 1021a and provide a second power signal for the second electrode 10212 in the first type of electrochromic unit 1021a during a first time period. The second type of driving circuit 103 connected to the second type of electrochromic unit 1021b is used to provide a first power signal for the first electrode 10211 in the second type of electrochromic unit 1021b and provide a second power signal for the second electrode 10212 in the second type of electrochromic unit 1021b during a second time period. The third type of driving circuit 103 connected to the third type of electrochromic unit 1021c is used to provide a first power signal for the first electrode 10211 in the third type of electrochromic unit 1021c and provide a second power signal for the second electrode 10212 in the third type of electrochromic unit 1021c during a third time period.

[0103] According to the above first to third embodiments, for the electrochromic unit 1021 to present a mirror state, it is necessary to make the potential of the first power signal provided by the driving circuit 103 to the transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification lower than the potential of the second power signal provided to the other electrode. That is, it is possible to make the silver ions move in the direction close to the transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification.

[0104] Assume that both the first electrode 10211 and the second electrode 10212 are transparent conductive glasses of fluorine-doped tin dioxide without titanium dioxide modification. Then, the potential of the first power signal provided by the driving circuit 103 to the first electrode 10211 can be lower than the potential of the second power signal provided to the second electrode 10212. Silver ions can move towards the direction close to the first electrode 10211 and deposit on the first electrode 10211. In this case, the side of the first electrode 10211 close to the second electrode 10212 in the electrochromic unit 1021 can present a mirror state. Or, the potential of the second power signal provided by the driving circuit 103 to the second electrode 10212 can be lower than the potential of the first power signal provided to the first electrode 10211. In this case, silver ions can move towards the direction close to the second electrode 10212 and deposit on the second electrode 10212. In this case, the side of the second electrode 10212 close to the first electrode 10211 in the electrochromic unit 1021 can present a mirror state.

[0105] Assume that the first electrode 10211 is a transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification, and the second electrode 10212 is a transparent conductive glass of fluorine-doped tin dioxide with titanium dioxide modification. Then, the potential of the first power signal provided by the driving circuit 103 to the first electrode 10211 can be lower than the potential of the second power signal provided to the second electrode 10212. Silver ions move towards the direction close to the first electrode 10211 and deposit on the first electrode 10211. In this case, the side of the first electrode 10211 close to the second electrode 10212 in the electrochromic unit 1021 can present a mirror state. If the potential of the second power signal provided by the driving circuit 103 to the second electrode 10212 is lower than the potential of the first power signal provided to the first electrode 10211, silver ions move towards the direction close to the second electrode 10212 and deposit on the second electrode 10212. In this case, since the second electrode 10212 is a transparent conductive glass of fluorine-doped tin dioxide with titanium dioxide modification, the electrochromic unit 1021 cannot present a mirror state.

[0106] Thus, regardless of whether the second electrode 10212 is a transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification or a transparent conductive glass of fluorine-doped tin dioxide with titanium dioxide modification. As long as it is ensured that the potential of the first power signal provided by the driving circuit 103 to the first electrode 10211 is lower than the potential of the second power signal provided to the second electrode 10212, silver ions can be made to move towards the side close to the first electrode 10211 (transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification). That is to say, the electrochromic unit 1021 can present a mirror state.

[0107] Optionally, the silver ions in the first type of electrochromic unit 1021a move towards the direction close to the first electrode 10211 in the first time period and are deposited on the first electrode 10211. The silver ions in the second type of electrochromic unit 1021b move towards the direction close to the first electrode 10211 in the second time period and are deposited on the first electrode 10211. The silver ions in the third type of electrochromic unit 1021c move towards the direction close to the first electrode 10211 in the third time period and are deposited on the first electrode 10211. And, since the first electrode 10211 is a transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification, the first type of electrochromic unit 1021a, the second type of electrochromic unit 1021b, and the third type of electrochromic unit 1021c can all present a mirror state.

[0108] The main reason why the electrochromic unit 1021 can present a mirror state is the electrodeposition of silver ions on the transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification. Since electrodeposition is a process, the thickness of the deposited silver ions is positively correlated with the deposition duration. That is, the longer the deposition duration, the thicker the thickness of the deposited silver ions; the shorter the deposition duration, the thinner the thickness of the deposited silver ions.

[0109] In the embodiment of the present application, whether the second electrode 10212 is a transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification or a transparent conductive glass of fluorine-doped tin dioxide with titanium dioxide modification. In order to make the electrochromic component 102 form a concave mirror facing the user, the first electrode 10211 can be made closer to the light-emitting surface of the display panel 101 than the second electrode 10212, and the potential of the first power signal provided by the driving circuit 103 to the first electrode 10211 is lower than the potential of the second power signal provided to the second electrode 10212. And, it is necessary to make the duration of the third time period longer than the duration of the second time period, and make the duration of the second time period longer than the duration of the first time period.

[0110] Thus, the thickness of the silver ions deposited on the first electrode 10211 in the third type of electrochromic unit 1021c is greater than the thickness of the silver ions deposited on the first electrode 10211 in the second type of electrochromic unit 1021b, and it can be made such that the thickness of the silver ions deposited on the first electrode 10211 in the second type of electrochromic unit 1021b is greater than the thickness of the silver ions deposited on the first electrode 10211 in the first type of electrochromic unit 1021a. Thus, the deposition layers of the silver ions of the plurality of electrochromic units 1021 can gradually become thicker from the middle to the edge, and, making the deposition layer of the silver ions located on one electrode (the first electrode 10211) close to the light-emitting surface of the display panel 101, the electrochromic component 102 can be made to form a concave mirror facing the user, and this concave mirror can realize the function of local magnification.

[0111] Alternatively, if both the first electrode 10211 and the second electrode 10212 are transparent conductive glasses of fluorine-doped tin dioxide without titanium dioxide modification. In order to make the electrochromic component 102 form a concave mirror facing the user, it is also possible to make the second electrode 10212 closer to the light-emitting surface of the display panel 101 than the first electrode 10211, and make the potential of the second power signal supplied by the driving circuit 103 to the second electrode 10212 lower than the potential of the first power signal supplied to the first electrode 10211. And, it is possible to make the duration of the third time period longer than the duration of the second time period, and make the duration of the second time period longer than the duration of the first time period.

[0112] Thus, the thickness of the silver ions deposited on the second electrode 10212 in the third type of electrochromic unit 1021c is greater than the thickness of the silver ions deposited on the second electrode 10212 in the second type of electrochromic unit 1021b, and it is possible to make the thickness of the silver ions deposited on the second electrode 10212 in the second type of electrochromic unit 1021b greater than the thickness of the silver ions deposited on the second electrode 10212 in the first type of electrochromic unit 1021a. Thus, the deposition layers of silver ions of the plurality of electrochromic units 1021 can gradually become thicker from the middle to the edge, and by making the deposition layer of silver ions located on one electrode (the second electrode 10212) close to the light-emitting surface of the display panel 101, the electrochromic component 102 can form a concave mirror facing the user, and this concave mirror can realize the function of local magnification.

[0113] That is, in order to make the electrochromic component 102 form a concave mirror facing the user, it is necessary to make one electrode close to the light-emitting surface of the display panel 101 a transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification, and the potential of the power signal supplied by the driving circuit 103 to one electrode close to the light-emitting surface of the display panel 101 is lower than the potential of the power signal supplied to the other electrode far from the light-emitting surface of the display panel 101.

[0114] Optionally, the first time period, the second time period, and the third time period may have an overlapping area, or may not have an overlapping area. The embodiments of the present application do not limit this, as long as it is ensured that the duration of the third time period is longer than the duration of the second time period, and the duration of the second time period is longer than the duration of the first time period.

[0115] Exemplarily, referring to Figure 8, the third type of driving circuit 103 provides a first power signal with a potential V1 of -2.5V to the first electrode 10211 of the third type of electrochromic unit 1021c. After 1 second (s) of duration, the second type of driving circuit 103 provides a first power signal with a potential V2 of -2.5V to the first electrode 10211 of the second type of electrochromic unit 1021b. After 1 second of duration, the first type of driving circuit 103 provides a first power signal with a potential V3 of -2.5V to the first electrode 10211 of the first type of electrochromic unit 1021a.

[0116] That is, the second type of driving circuit 103 applies a voltage to the electrochromic unit 1021 with a 1-second delay relative to the third type of driving circuit 103. Moreover, the first type of driving circuit 103 applies a voltage to the electrochromic unit 1021 with a 1-second delay relative to the second type of driving circuit 103.

[0117] Optionally, each type of driving circuit 103 can provide a second power signal with a potential of 0V to the second electrode 10212 of the electrochromic unit 1021.

[0118] Reference Figure 8 It can be seen that during the process of the electrochromic component 102 forming a concave mirror, each driving circuit 103 can provide a power signal to the electrochromic unit 1021 in multiple intermittent sub-time periods. Of course, each driving circuit 103 can also continuously provide a power signal to the electrochromic unit 1021, and the embodiments of the present application do not limit this.

[0119] Moreover, if each driving circuit 103 provides a power signal to the electrochromic unit 1021 in multiple intermittent sub-time periods, then after a certain moment T, the durations of the respective sub-time periods when each type of driving circuit 103 provides a power signal to the electrochromic unit 1021 can be the same to ensure the stability of silver ion deposition.

[0120] Figure 9 It is a schematic structural diagram of another display panel provided by the embodiments of the present application. Reference Figure 9 , the display panel 101 can include: a first region 101a and a second region 101b located on one side of the first region 101a. Moreover, reference Figure 10 , at least one electrochromic unit 1021 can include: at least one first type of electrochromic unit 1021a and at least one second type of electrochromic unit 1021b.

[0121] Wherein, the orthographic projection of the at least one first type of electrochromic unit 1021a on the display panel 101 can be located in the first region 101a, and the orthographic projection of the at least one second type of electrochromic unit 1021b on the display panel 101 can be located in the second region 101b.

[0122] Exemplarily, referring to Figure 10 , the at least one electrochromic unit 1021 may include: nine first - type electrochromic units 1021a and nine second - type electrochromic units 1021b.

[0123] In the embodiments of the present application, for the first - type driving circuit 103 connected to the first - type electrochromic unit 1021a, the potential of the first power supply signal provided for the first electrode 10211 in the first - type electrochromic unit 1021a may be lower than the potential of the second power supply signal provided for the second electrode 10212 in the first - type electrochromic unit 1021a. For the second - type driving circuit 103 connected to the second - type electrochromic unit 1021b, the potential of the first power supply signal provided for the first electrode 10211 in the second - type electrochromic unit 1021b is equal to the potential of the second power supply signal provided for the second electrode 10212 in the second - type electrochromic unit 1021b.

[0124] According to the first to the third embodiments described above, the potential of the first power supply signal provided by the first - type driving circuit 103 for the first electrode 10211 in the first - type electrochromic unit 1021a is lower than the potential of the second power supply signal provided for the second electrode 10212 in the first - type electrochromic unit 1021a, which can cause the silver ions in the first - type electrochromic unit 1021a to move in the direction close to the first electrode 10211 and deposit on the first electrode 10211. And, since the first electrode 10211 in the first - type electrochromic unit 1021a is a transparent conductive glass of fluorine - doped tin dioxide without titanium dioxide modification, the first - type electrochromic unit 1021a can present a mirror state.

[0125] Alternatively, if the second electrode 10212 is also a transparent conductive glass of fluorine - doped tin dioxide without titanium dioxide modification. Then, the potential of the second power supply signal provided by the first - type driving circuit 103 for the second electrode 10212 in the first - type electrochromic unit 1021a is lower than the potential of the first power supply signal provided for the first electrode 10211 in the first - type electrochromic unit 1021a, which can also make the first - type electrochromic unit 1021a present a mirror state. In this case, the silver ions in the first - type electrochromic unit 1021a can move in the direction close to the second electrode 10212 and deposit on the second electrode 10212.

[0126] In the embodiment of the present application, the potential of the first power supply signal provided by the second type of driving circuit 103 for the first electrode 10211 in the second type of electrochromic unit 1021b is equal to the potential of the second power supply signal provided for the second electrode 10212 in the second type of electrochromic unit 1021b. Thereby, the silver ions in the second type of electrochromic unit 1021b can be kept stationary, and the second type of electrochromic unit 1021b can transmit the ambient light from the outside.

[0127] Since the first type of electrochromic unit 1021a presents a mirror state and the second type of electrochromic unit 1021b transmits the ambient light from the outside, a part of the electrochromic component 102 can be used as a mirror to present an image of an object, and the other part can be used to transmit the image displayed on the display panel 101. Thus, referring to Figure 11 one can look at oneself in the mirror through the first area 101a and view the content displayed on the display panel 101 through the second area 101b, and the flexibility of the display device is relatively high.

[0128] Figure 12 is a schematic structural diagram of another display device provided by the embodiment of the present application. Referring to Figure 12 it can be seen that the display device 10 may further include: a control circuit 104. The control circuit 104 can be connected to each driving circuit 103 and is used to provide a first control signal, a second control signal or a third control signal for the driving circuit 103.

[0129] The driving circuit 103 can be used to: drive the electrochromic unit 1021 to present a mirror state according to the first control signal, drive the electrochromic unit 1021 to absorb the ambient light from the outside according to the second control signal, and drive the electrochromic unit 1021 to transmit the ambient light from the outside according to the third control signal.

[0130] Wherein, the driving circuit 103 may include a signal detector. The signal detector can determine whether the received control signal is a first control signal, a second control signal, or a third control signal according to the control signal sent by the control circuit 104 received by the driving circuit 103. The driving circuit 103 can then drive the electrochromic unit 1021 according to the determined control signal.

[0131] In the embodiment of the present application, the display device 10 may further include: a plurality of light intensity sensors (not shown in the figure) connected to the control circuit 104. The light intensity sensors can be used to detect the light intensity of the ambient light from the outside. Moreover, the plurality of light intensity sensors can be evenly distributed on the side of the electrochromic component 102 away from the display panel 101 to detect the light intensity of the ambient light in different areas of the display device.

[0132] When the ambient light from the outside world is weak, the influence of the ambient light on the display effect of the display panel 101 is small. Therefore, the electrochromic unit 1021 can transmit the ambient light from the outside world to ensure the optimal light output rate of the display panel 101, and further ensure the display effect of the display panel 101. Moreover, when the ambient light from the outside world is strong, the ambient light will greatly affect the display effect of the display panel 101. Therefore, the electrochromic unit 1021 can absorb the ambient light from the outside world to reduce the influence of the ambient light on the display effect of the display panel 101.

[0133] Optionally, the control circuit 104 may include a light intensity comparator, and a light intensity threshold may be pre-stored in the light intensity comparator. The light intensity comparator can compare the light intensity of the ambient light detected by the light intensity sensor with the light intensity threshold. When the light intensity comparator determines that the light intensity of the ambient light from the outside world is greater than or equal to the light intensity threshold, the control circuit 104 can provide a second control signal to the driving circuit 103, so that the driving circuit 103 drives the electrochromic unit 1021 to absorb the ambient light from the outside world according to the second control signal. When the light intensity comparator determines that the light intensity of the ambient light detected by the light intensity sensor is less than the light intensity threshold, the control circuit 104 can provide a third control signal to the driving circuit 103, so that the driving circuit 103 drives the electrochromic unit 1021 to transmit the ambient light from the outside world according to the third control signal.

[0134] In the embodiment of the present application, since each electrochromic unit 1021 in the electrochromic component 102 corresponds to a driving circuit 103, the control circuit can control the driving circuit to adjust the states of the electrochromic units 1021 in different regions according to the light intensities detected by the light intensity sensors in different regions.

[0135] For example, if the light intensity comparator determines that the light intensity detected by the light intensity sensor in a certain region of the electrochromic component 102 is greater than or equal to the light intensity threshold, the control circuit 104 can provide a second control signal to the driving circuit 103 corresponding to the electrochromic unit 1021 in this region. Or, if the light intensity comparator determines that the light intensity detected by the light intensity sensor in a certain region of the electrochromic component 102 is less than the light intensity threshold, the control circuit 104 can provide a third control signal to the driving circuit 103 corresponding to the electrochromic unit 1021 in this region.

[0136] In the embodiment of the present application, the more the number of electrochromic units 1021 in the electrochromic component 102 that absorb the external ambient light, the lower the light extraction rate of the display panel 101. Therefore, when the intensity of the external ambient light is relatively high, in order to ensure the light extraction rate of the display panel 101, only some of the electrochromic units 1021 may be made to absorb the external ambient light. For example, 50% of the electrochromic units 1021 in the electrochromic component 102 absorb the external ambient light, and these 50% of the electrochromic units 1021 are evenly distributed, which can not only avoid the influence of the external ambient light on the display effect of the display panel 101, but also ensure the light extraction rate of the display panel 101.

[0137] Optionally, since the electrochromic unit 1021 can present a black state when absorbing the external ambient light, the electrochromic unit 1021 can also be used as the black matrix layer in the display panel 101, which can simplify the structure of the display panel 101.

[0138] Figure 13 It is a schematic structural diagram of another electrochromic unit and display panel provided by the embodiment of the present application. Refer to Figure 13 As shown in the figure, the electrochromic unit 1021 may include: a transmissive-reflective film 10211, a first electrode 10212, a liquid crystal layer 10213, a second electrode 10214, and a polarizer 10215, which are stacked in sequence along the direction away from the display panel 101.

[0139] The driving circuit 103 may be respectively connected to the first electrode 10212 and the second electrode 10214, and is configured to provide power signals for the first electrode 10212 and the second electrode 10214. The polarizer 10215 may be configured to adjust the external ambient light into polarized light. The liquid crystal molecules in the liquid crystal layer 10213 may be deflected under the action of the power signal provided by the driving circuit 103, and the transmissive-reflective film 10211 may be configured to transmit polarized light or reflect polarized light. For example, the transmissive-reflective film 10211 may be configured to transmit polarized light in a first polarization direction and reflect polarized light in a second polarization direction. Or, the transmissive-reflective film 10211 may be configured to reflect polarized light in a first polarization direction and transmit polarized light in a second polarization direction. Wherein, the first polarization direction is perpendicular to the second polarization direction.

[0140] Assume that the external ambient light can be adjusted into polarized light in the first polarization direction after passing through the polarizer 10215, and the liquid crystal layer 10213 is a liquid crystal cell in a twisted nematic (TN) mode. And assume that the transmissive-reflective film 10211 can reflect polarized light in the first polarization direction and transmit polarized light in the second polarization direction.

[0141] If there is a voltage difference between the power supply signals provided by the driving circuit 103 for the first electrode 10212 and the second electrode 10214 (for example, the potential of the power supply signal provided by the driving circuit 103 for one of the first electrode 10212 and the second electrode 10214 is a positive potential, and the potential of the power supply signal provided for the other electrode is a negative potential, that is, an electric field is applied), the liquid crystal molecules in the liquid crystal layer 10213 can be deflected under the action of this electric field. In this case, the ambient light from the outside becomes polarized light in the first polarization direction after passing through the polarizer 10215. The polarized light in the first polarization direction does not deflect when passing through the liquid crystal layer 10212. After the polarized light in the first polarization direction irradiates the transmissive and reflective film 10211, it can be reflected by the transmissive and reflective film 10211, making the electrochromic unit 1021 present a mirror state. In this case, the reflectivity of the electrochromic unit 1021 is relatively high, for example, it can be greater than 50%.

[0142] If there is no voltage difference between the power supply signals provided by the driving circuit 103 for the first electrode 10212 and the second electrode 10214 (for example, the potentials of the power supply signals provided by the driving circuit 103 for the first electrode 10212 and the second electrode 10214 are both 0V, that is, no electric field is applied), the liquid crystal molecules in the liquid crystal layer 10213 will not be deflected. In this case, the ambient light from the outside becomes polarized light in the first polarization direction after passing through the polarizer 10215. The polarized light in the first polarization direction will be modulated into polarized light in the second polarization direction after passing through the liquid crystal layer 10212. After the polarized light in the second polarization direction irradiates the transmissive and reflective film 10211, it can be transmitted by the transmissive and reflective film 10211, and the electrochromic unit 1021 can present a transparent state. The reflectivity of the electrochromic unit 1021 is relatively low, and the ambient light from the outside can be absorbed by the display panel 101, and the electrochromic unit 1021 can achieve an anti-glare effect (the transparent state of the electrochromic unit 1021 can also be called an anti-glare state). And if the display panel 101 displays an image at this time, the user can see the content displayed on the display panel 101 through the transparent electrochromic unit 1021.

[0143] In the embodiment of the present application, the control circuit 104 can be used to provide a fourth control signal and a fifth control signal for the driving circuit 103. The driving circuit 103 can be used to: drive the electrochromic unit 1021 to present a mirror state according to the fourth control signal, and drive the electrochromic unit 1021 to transmit the ambient light from the outside according to the fifth control signal.

[0144] Among them, the driving circuit 103 may include a signal detector. The signal detector may determine whether the received control signal is a fourth control signal or a fifth control signal according to the control signal sent by the control circuit 104 received by the driving circuit 103. The driving circuit 103 may then drive the electrochromic unit 1021 according to the determined control signal.

[0145] In the embodiment of the present application, the control circuit 104 may control the driving circuit 103 according to the light intensity of the external ambient light detected by the light intensity sensor. The driving circuit 103 may then adjust the state of the electrochromic unit 1021 so that the electrochromic unit 1021 presents a mirror state or transmits the external ambient light.

[0146] Optionally, when the light intensity comparator in the control circuit 104 determines that the light intensity of the external ambient light is greater than or equal to the light intensity threshold, the control circuit 104 may provide a fifth control signal for the driving circuit 103 so that the driving circuit 103 drives the electrochromic unit 1021 to transmit the external ambient light according to the fifth control signal. When the light intensity comparator determines that the light intensity of the external ambient light detected by the light intensity sensor is less than the light intensity threshold, the control circuit 104 may provide a fourth control signal for the driving circuit 103 so that the driving circuit 103 drives the electrochromic unit 1021 to present a mirror state according to the fourth control signal.

[0147] In the embodiment of the present application, since each electrochromic unit 1021 in the electrochromic component 102 corresponds to a driving circuit 103, the control circuit may control the driving circuit to adjust the state of the electrochromic units 1021 in different regions according to the light intensities detected by the light intensity sensors in different regions.

[0148] Exemplarily, if the light intensity comparator determines that the light intensity detected by the light intensity sensor in a certain region of the electrochromic component 102 is greater than or equal to the light intensity threshold, the control circuit 104 may provide a fifth control signal for the driving circuit 103 corresponding to the electrochromic unit 1021 in this region. Or, if the light intensity comparator determines that the light intensity detected by the light intensity sensor in a certain region of the electrochromic component 102 is less than the light intensity threshold, the control circuit 104 may provide a fourth control signal for the driving circuit 103 corresponding to the electrochromic unit 1021 in this region.

[0149] Optionally, the light intensity sensor may be a transparent solar panel, which can detect the photocurrent and convert solar energy into electrical energy to provide energy for the display device 10.

[0150] In summary, the embodiment of the present application provides a display device. An electrochromic component is attached to the light-emitting surface of the display panel in the display device, and the electrochromic unit in the electrochromic component can present a mirror state or transmit the external ambient light under the drive of a drive circuit. When the electrochromic unit transmits the external ambient light, the display device can display an image normally. When the electrochromic unit presents a mirror state, the display device can act as a mirror to present an image of an object. That is, in addition to being able to display an image, the display device can also act as a mirror, with relatively high flexibility.

[0151] Figure 14 is a schematic structural diagram of a vehicle provided by an embodiment of the present application. Refer to Figure 14 It can be seen that the vehicle 00 may include a vehicle body 20 and an in-vehicle rearview mirror 10 provided on the vehicle body. The in-vehicle rearview mirror 10 may include the display device provided in the above embodiment.

[0152] In the embodiment of the present application, refer to Figure 15 , all electrochromic units 1021 can be made to transmit the external ambient light (all in a transparent state), so that the picture transmitted by the camera is displayed in all areas of the in-vehicle rearview mirror 10. Refer to Figure 16 , the electrochromic units 1021 in a relatively small area b1 can be made to transmit the external ambient light, so that content with a relatively small required display area, such as incoming call information or speed, is displayed on the in-vehicle rearview mirror 10. And, the electrochromic units 1021 in other areas b2 reflect the external ambient light (mirror state), ensuring that there is a large mirror surface in the in-vehicle rearview mirror 10.

[0153] Moreover, during night driving, the light from the headlights of the vehicle behind may shine on the in-vehicle rearview mirror 10, interfering with the driver's line of sight. In such a case, the light from the headlights of the vehicle behind will produce strong glare in a local area of the in-vehicle rearview mirror (the light intensity in the local area is large). At this time, in order to reduce the influence of the light intensity, if all electrochromic units 1021 in the electrochromic component 102 of the in-vehicle rearview mirror 10 are adjusted to the transparent state, the mirror effect of the in-vehicle rearview mirror 10 will be affected. Therefore, to avoid the above situation, only the electrochromic units 1021 in the area where glare is generated can be adjusted to the transparent state, and the electrochromic units 1021 in other areas remain in the mirror state. Thereby, not only is the glare generated in some areas suppressed, but also the mirror state of the electrochromic units 1021 in other areas is not affected.

[0154] In the embodiment of the present application, refer to Figure 17, at the first moment t1, the light irradiated by the rear vehicle's headlight will generate strong glare in the target area c1 of the vehicle-mounted rearview mirror 10. At this time, the control circuit 104 can control the drive circuit 103 to adjust the electrochromic unit 1021 in this target area c1 to a transparent state. Or, at the second moment t2, the light irradiated by the rear vehicle's headlight will generate strong glare in the target area c2 of the vehicle-mounted rearview mirror 10. At this time, the control circuit 104 can control the drive circuit 103 to adjust the electrochromic unit 1021 in this target area c2 to a transparent state. Or, at the third moment t3, the light irradiated by the rear vehicle's headlight will generate strong glare in the target area c3 of the vehicle-mounted rearview mirror 10. At this time, the control circuit 104 can control the drive circuit 103 to adjust the electrochromic unit 1021 in this target area c3 to a transparent state.

[0155] That is to say, the control circuit 104 in the vehicle-mounted rearview mirror can control the drive circuit 103 to adjust the state of the electrochromic unit 1021 in real time according to the light intensity to ensure driving safety.

[0156] The above are only optional embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display device, characterized in that, the display device includes: a display panel having a first region, a second region surrounding the first region, and a third region surrounding the second region; an electrochromic component attached to the light-emitting surface of the display panel, and the electrochromic component includes at least one electrochromic unit, and the at least one electrochromic unit includes: at least one first-type electrochromic unit, at least one second-type electrochromic unit, and at least one third-type electrochromic unit; wherein, the orthographic projection of the at least one first-type electrochromic unit on the display panel is located in the first region, the orthographic projection of the at least one second-type electrochromic unit on the display panel is located in the second region, and the orthographic projection of the at least one third-type electrochromic unit on the display panel is located in the third region; the electrochromic unit includes: a first electrode, a second electrode, and an electrolyte located between the first electrode and the second electrode; the first electrode is closer to the light-emitting surface of the display panel than the second electrode; the first electrode is a transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification, and the material of the electrolyte includes: silver nitrate; and at least one driving circuit corresponding to the at least one electrochromic unit one by one, each driving circuit is connected to a corresponding electrochromic unit, the driving circuit is respectively connected to the first electrode and the second electrode, and the driving circuit is configured to provide a first power signal for the first electrode and a second power signal for the second electrode; the first-type driving circuit in the at least one driving circuit is configured to: provide the first power signal for the first electrode in the first-type electrochromic unit and provide the second power signal for the second electrode in the first-type electrochromic unit in a first time period; the second-type driving circuit in the at least one driving circuit is configured to: provide the first power signal for the first electrode in the second-type electrochromic unit and provide the second power signal for the second electrode in the second-type electrochromic unit in a second time period; the third-type driving circuit in the at least one driving circuit is configured to: provide the first power signal for the first electrode in the third-type electrochromic unit and provide the second power signal for the second electrode in the third-type electrochromic unit in a third time period; Wherein, when the electrochromic unit presents a mirror state, the potential of the first power signal is lower than that of the second power signal, and silver ions in the silver nitrate move towards the direction close to the first electrode under the action of the first power signal and the second power signal, so that the electrochromic unit presents a mirror state; the duration of the third time period is greater than that of the second time period, and the duration of the second time period is greater than that of the first time period. The time when the third type of driving circuit provides a power signal is earlier than the time when the second type of driving circuit provides a power signal, and the time when the second type of driving circuit provides a power signal is earlier than the time when the first type of driving circuit provides a power signal.

2. The display device according to claim 1, wherein, the orthographic projection of the at least one driving circuit on the display panel does not overlap with the orthographic projection of the electrochromic component on the display panel.

3. The display device according to claim 1, wherein, the second electrode is a transparent conductive glass of fluorine-doped tin dioxide without titanium dioxide modification.

4. The display device according to claim 1, wherein, the second electrode is a transparent conductive glass of fluorine-doped tin dioxide modified with titanium dioxide.

5. The display device according to claim 4, wherein, the display device further includes: a control circuit; the control circuit is connected to each driving circuit and is used to provide a first control signal, a second control signal or a third control signal for the driving circuit; the driving circuit is used for: driving the electrochromic unit to present a mirror state according to the first control signal; driving the electrochromic unit to absorb external ambient light according to the second control signal; driving the electrochromic unit to transmit external ambient light according to the third control signal.

6. The display device according to claim 5, wherein, the display device further includes: a plurality of light intensity sensors connected to the control circuit; the light intensity sensors are used to detect the light intensity of external ambient light; the control circuit is used for: if the light intensity is greater than or equal to the light intensity threshold, providing the second control signal for the driving circuit; if the light intensity is less than the light intensity threshold, providing the third control signal for the driving circuit.

7. The display device according to any one of claims 1 to 4, wherein, the display panel is an organic light-emitting diode display panel or a liquid crystal display panel.

8. A vehicle, wherein, the vehicle includes a vehicle body and an in-vehicle rearview mirror provided on the vehicle body, and the in-vehicle rearview mirror includes the display device according to any one of claims 1 to 7.

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