Display system and vehicle

Abstract

The utility model provides a display system which comprises a display portion and a reflection portion, the display portion comprises a display screen, the reflection portion at least presents a dark color when the display system works, a first surface is an outer side surface, facing the display screen, of the reflection portion, and the first surface directly or indirectly reflects a first image displayed by the display screen. The utility model further provides a vehicle. According to the display system and the vehicle provided by the utility model, the first image is reflected by the reflecting part in dark color, and the virtual image of the first image is not superposed on the real scene outside the vehicle, so that high brightness is not needed, more detailed driving information can be displayed in a larger area when the heat is fixed, and the driving information can be displayed in a larger area. The driver can observe the road condition in front of the vehicle without being influenced, so that the driver can obtain all driving information without leaving the road surface, and the driving safety is ensured.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, and in particular to a display system and a transportation tool. Background Art

[0002] Currently, more and more vehicles are equipped with head-up display devices. During the driving process, the driver can obtain driving information without taking his eyes off the road to ensure driving safety.

[0003] like Figure 1 As shown, the head-up display device includes a shell 41, an image generating unit 42, a plane mirror 43, an aspherical mirror 44, an upper cover 45 and a transparent cover plate 46. The image generating unit 42 is used to generate an image (including driving information). The plane mirror 43 and the aspherical mirror 44 are used to reflect the image out of the head-up display device, project it onto the windshield 8 of the vehicle, and reflect it to the driver's eyes 9 through the windshield 8 to form a virtual image in front of the driver.

[0004] Since the symbols displayed by the head-up display device need to be superimposed on the real scene outside the vehicle, sufficient brightness is required to ensure that the displayed symbols can be clearly recognized by the driver.

[0005] First, when the heat is constant, setting the backlight source of the head-up display device relatively concentratedly can bring higher brightness, so the symbols displayed by the head-up display device are usually concentrated in a smaller area, so the smaller area limits it from displaying more detailed driving information; secondly, displaying more detailed driving information with higher brightness will affect the driver's observation of the road conditions in front of the vehicle, and therefore more detailed driving information cannot be displayed.

[0006] When the driver needs this information, he still needs to look down at the instrument, which may affect driving safety. Utility Model Content

[0007] In view of the problems existing in the prior art, the problem to be solved by the utility model is to provide a display system, including a reflective portion that presents a dark color at least when the display system is working, and the first surface of the reflective portion directly or indirectly reflects the first image including driving information displayed on the display screen, forming a virtual image of the first image in front of the driver. Since the reflective portion presents a dark color reflects the first image, the virtual image of the first image is not superimposed on the real scene outside the vehicle, and therefore does not require very high brightness. In this way, when the heat is constant, more detailed driving information can be displayed in a larger area without affecting the driver's observation of the road conditions in front of the vehicle, so that the driver can obtain all driving information without leaving the road surface, thereby ensuring driving safety.

[0008] The utility model provides a display system, comprising a display part and a reflection part. The display part comprises one or more display screens for displaying a first image. The reflection part presents a dark color at least when the display system is working. The reflection part comprises a first surface, which is the outer surface of the reflection part facing the display screen. The first surface directly or indirectly reflects the first image displayed on the display screen.

[0009] Furthermore, the reflecting part is made of glass, metal or plastic.

[0010] Furthermore, a dark ink layer, a dark film or a dark paint layer is provided on the first surface.

[0011] Furthermore, the reflective portion includes two or more layers of glass or two or more layers of plastic, a dark ink layer, a dark film or a dark paint layer is arranged between at least two layers, or an electrochromic material, a photochromic material or a thermochromic material is arranged between at least two layers.

[0012] Furthermore, the first surface is provided with an optical reflective film.

[0013] Furthermore, a phase conversion film is provided on the display screen, and the phase conversion film is used to convert the P polarized light emitted by the display screen into S polarized light.

[0014] Furthermore, the display unit further includes a reflector, and the first surface indirectly reflects the first image displayed on the display screen by means of the reflector.

[0015] The utility model provides a transportation tool, comprising the above-mentioned display system.

[0016] Furthermore, the reflecting part is arranged on the windshield, window glass or interior decoration of the vehicle.

[0017] Furthermore, a reflector is arranged in the vehicle, and the reflective portion is arranged on the reflector.

[0018] Compared with the prior art, the display system and vehicle provided by the utility model have the following beneficial effects: including a reflective portion that presents a dark color at least when the display system is working, the first surface is the outer surface of the reflective portion facing the display screen, the first surface directly or indirectly reflects the first image including driving information displayed on the display screen, and forms a virtual image of the first image in front of the driver. Since the reflective portion that presents a dark color reflects the first image, the virtual image of the first image is not superimposed on the real scene outside the vehicle, and therefore does not require very high brightness. In this way, when the heat is constant, more detailed driving information can be displayed in a larger area without affecting the driver's observation of the road conditions in front of the vehicle, so that the driver can obtain all driving information without leaving the road surface, thereby ensuring driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1is a schematic diagram of a conventional head-up display device;

[0020] Figure 2 is a schematic diagram of a display system for a vehicle according to an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the vehicle interior;

[0022] Figure 4 is a cross-sectional view of a first surface of a reflective portion having a dark layer disposed thereon;

[0023] Figure 5 It is a cross-sectional view of a reflective portion that is double-layered glass with a dark layer disposed between the two layers of glass;

[0024] Figure 6 It is a schematic diagram of a phase conversion film converting P polarized light into S polarized light;

[0025] Figure 7 is a schematic diagram of providing an optical reflective film on the first surface of the reflective portion;

[0026] Figure 8 is a schematic diagram of a display system in which a display portion includes a reflector;

[0027] Fig. 9 It is a schematic diagram of a reflective plate whose reflective portion is arranged inside a vehicle. DETAILED DESCRIPTION

[0028] The means of transport in one embodiment of the utility model is, for example, a vehicle, and the means of transport may also be an airplane, a ship, etc.

[0029] like Figure 2 , Figure 3 As shown, the vehicle in this embodiment includes a display system, and the display system includes a display part 1 and a reflection part 2.

[0030] The display unit 1 includes a display screen 11 for displaying a first image. In this embodiment, the first image includes driving information, such as current vehicle speed, rotation speed, fuel level, light status, etc. The first image also includes infotainment information and co-pilot screen information.

[0031] In other embodiments, the first image includes driving information and infotainment information, or the first image includes driving information and co-pilot screen information, or the first image only includes driving information.

[0032] In actual applications, the first image may be displayed by one or more display screens, that is, the display screen 11 may include one or more display screens.

[0033] In this embodiment, the reflective portion 2 is disposed at the lower portion of the windshield 8, which does not affect the driver's observation of the road conditions in front of the vehicle. In other embodiments, for example, the first image only includes driving information, and the reflective portion is disposed at the lower left corner of the windshield 8, which is applied to the scene where the steering wheel is on the left, and the reflective portion can also be disposed at the lower right corner of the windshield 8, which is applied to the scene where the steering wheel is on the right. In other embodiments, it can also be disposed at other positions that do not affect the driver's observation of the road conditions in front of the vehicle, such as the upper portion, left side or right side of the windshield.

[0034] The reflective portion 2 presents a dark color at least when the display system is working. The reflective portion 2 includes a first surface 20. Figure 4 As shown, the first surface 20 is the outer surface of the reflective portion 2 facing the display screen 11 .

[0035] The first surface 20 of the reflective portion 2 presents a dark color, and reflects the first image including more detailed driving information displayed on the display screen 11 to the driver's eyes 9, forming a virtual image of the first image in front of the driver. This solution has the following advantages:

[0036] First, the dark reflective portion 2 reflects the first image, and the virtual image of the first image will no longer be superimposed on the real scene outside the vehicle, so it does not need very high brightness. Under the condition of constant heat, it can display more detailed driving information in a larger area without affecting the driver's observation of the road conditions in front of the vehicle, so that the driver can obtain all driving information without leaving the road, thereby ensuring driving safety;

[0037] Secondly, the dark-colored reflective portion 2 can increase the virtual image contrast of the first image and improve the imaging effect, so that the virtual image in front of the driver is clearer and the displayed driving information is easier to identify, thereby further ensuring driving safety.

[0038] The double-layer glass used in some vehicles is also called "laminated glass". Its structural characteristics are that it is based on two layers of glass, with PVB (polyvinyl butyral) film in the middle layer. The glass can be tightly bonded together after heat pressing.

[0039] In this embodiment, Figure 3 , Figure 4 As shown, the reflective portion 2 disposed at the lower portion of the windshield 8 includes an outer glass 21, an interlayer 22 and an inner glass 23, wherein the interlayer 22 is a PVB film.

[0040] The outer surface of the inner glass 23 (facing the display screen 11 ) is the first surface 20 , and the first surface 20 is provided with a dark layer, for example, a black ink layer is printed on the first surface 20 , a dark film is attached, or a dark paint is applied.

[0041] In this embodiment, the Figure 4The dark-colored reflective portion 2 is realized by pasting a dark-colored film 31 on the first surface 20 as shown. Specifically, a black self-adhesive polyester film is used. This film has good weather resistance and is not easy to age. It can withstand high temperatures and ultraviolet rays generated by long-term sunlight exposure to ensure reliable and efficient reflection of the first image.

[0042] By sticking a dark film or applying a dark paint layer, when a windshield is damaged and needs to be replaced, it is only necessary to stick the dark film or apply the dark paint layer on a new windshield.

[0043] The interlayer 22 is mainly used to bond the outer glass 21 and the inner glass 23. When the windshield 8 is broken, the glass fragments can be stuck to prevent them from flying out to prevent harm to people around. That is, the interlayer 22 makes the windshield 8 explosion-proof.

[0044] When the light emitted by the existing head-up display device is projected onto the windshield, part of the light will be reflected on the inner glass surface to form a virtual image visible to the human eye, and another part of the light will be refracted on the inner glass. This part of the refracted light will be reflected on the outer glass to form another virtual image. The above two virtual images do not overlap, that is, ghosting will occur. Figure 1 In the vehicle with the head-up display device shown, the cross section of the interlayer 22 is usually set to be wedge-shaped, for example, thicker on the upper side and thinner on the lower side, so that the virtual image formed by the reflection of the inner glass of the windshield overlaps with the virtual image formed by the reflection of the outer glass, thereby eliminating the double image of the virtual image in front of the driver, but does not affect the explosion-proof performance of the windshield. In this way, on the one hand, the cost of the windshield used in the vehicle is relatively high, and on the other hand, when the windshield needs to be replaced, if there is no suitable windshield with a wedge-shaped cross section of the interlayer 22, it can only be replaced with an ordinary windshield, and the virtual image in front of the driver will appear double, affecting the display effect of the head-up display device.

[0045] In the display system of this embodiment, the dark layer arranged on the first surface absorbs light, and the light fails to reach the outer glass, and there is no virtual image formed by the reflection of the outer glass, so there will be no double image. In this way, the cross section of the interlayer 22 of the windshield 8 does not need to be set to a wedge shape, that is, the cross section of the interlayer 22 can be either a wedge shape or a non-wedge shape. For example, the thickness of the interlayer 22 is uniform, and the virtual image in front of the driver will not have a double image. Therefore, when the display system of this embodiment is installed before or after installation and when the windshield is replaced, ordinary windshield can be used, and there is no need to use a windshield with a wedge-shaped interlayer cross section.

[0046] In other embodiments, the reflective portion includes a single layer of glass, such as a window glass of a vehicle. Similarly, a dark layer may be provided on the outer surface (first surface) of the single layer of glass facing the display screen 11 .

[0047] The reflecting part may be made not only of glass but also of metal or plastic.

[0048] In other embodiments, the reflective portion includes a metal plate, such as an interior layer of a vehicle, and a dark layer may also be provided on the outer surface (first surface) of the metal plate facing the display screen 11 .

[0049] In other embodiments, the reflective portion may also be disposed on a door, window glass or interior decoration of a building.

[0050] In other embodiments, the reflective portion 2 includes two layers of glass or two layers of plastic, and a dark layer may be provided between the two layers of glass or two layers of plastic. Figure 5 As shown, a dark layer is provided between two layers of glass (outer glass 21 and inner glass 22), dark ink is printed, a dark film is pasted, or a dark paint is applied. Specifically, Figure 5 It is shown that the black ink layer 31 is arranged between the outer glass 21 and the interlayer 22. Of course, the black ink layer 31 can also be arranged between the interlayer 22 and the inner glass 21. The existing mature manufacturing process can realize the dark ink layer 31 close to the outer glass 21. To realize the dark ink layer 31 close to the inner glass 23, it may be necessary to change the process, fixtures, etc.

[0051] In the display system of this embodiment, the dark layer is arranged between the inner glass and the outer glass, so that the part of the light refracted by the inner glass is absorbed by the dark layer before reaching the outer glass, and there is no virtual image formed by the reflection of the outer glass, so there will be no double image. In this way, the cross section of the interlayer of the windshield does not need to be set to a wedge shape, so when the display system of this embodiment is installed before or after, and when the windshield is replaced, ordinary windshield can be used, and there is no need to use a windshield with a wedge-shaped interlayer cross section.

[0052] In other embodiments, the reflective portion 2 includes two layers of glass or two layers of plastic. An electrochromic material, a photochromic material or a thermochromic material may be disposed between the two layers of glass or between the two layers of plastic. By using the color-changing material, the reflective portion appears dark at least when the display system is operating.

[0053] The electrochromic technology is a mature technology. The electrochromic material can be directly sandwiched between the two layers of glass (the outer glass 21 and the inner glass 23) of the windshield by bonding. The adhesive used for bonding can be the adhesive used for bonding conventional windshields. It can be directly completed during the assembly process of the windshield production process without causing major changes to the original windshield production process.

[0054] When it is necessary to view more detailed driving information, these materials are controlled to change color through some control methods, such as button control, sound control, gesture control, etc., so that the reflective part 2 appears transparent or dark. When it is necessary to view driving information, press the button, turn on a power supply, and provide a specified voltage to the electrochromic material, and the reflective part can appear dark. The first surface reflects the first image displayed on the display screen, and forms a virtual image of the first image in front of the driver, so that the driver can see the driving information in the first image. When it is not necessary to view more detailed driving information, press the button again, disconnect the power supply, and the reflective part becomes transparent, which is the usual field of view of observing road conditions through the windshield. This can ensure that the driver can obtain all driving information without lowering his head, and does not reduce the field of view of observing road conditions, thereby ensuring driving safety.

[0055] Since the display screen 11 mainly emits P-polarized light, the windshield 8 reflects the P-polarized light weakly and reflects the S-polarized light strongly.

[0056] In another embodiment, a phase conversion film 33 is disposed on the display screen 11, and the phase conversion film 33 converts the P polarized light emitted by the display screen 11 into S polarized light. Figure 6 As shown, the first surface 20 of the reflective portion 2 of the windshield 8 can reflect more light into the driver's eyes, so that the driver can clearly see the first image reflected by the first surface 20, obtain the required driving information, and ensure driving safety.

[0057] The optical axis direction of the phase conversion film 33 is 45 degrees to the polarization axis of the polarizer on the display screen 11, and can convert the P polarized light emitted by the display screen 11 into S polarized light.

[0058] When a vehicle is driving, horizontal surfaces such as water or roads will reflect sunlight, causing glare, which affects the driver's observation of road conditions. S-polarized light accounts for a large proportion of glare. Some drivers wear polarized sunglasses, which can transmit P-polarized light and filter out S-polarized light in glare, thereby effectively preventing glare from affecting the driver's observation of road conditions.

[0059] The polarized sunglasses worn by the driver will also filter the S-polarized light reflected by the first surface 20 of the reflective portion 2 of the windshield 8 , so that less light is reflected into the driver's eyes 9 , making it impossible for the driver to clearly see the first image displayed on the display screen 11 .

[0060] In yet another embodiment, Figure 7As shown, the first surface 20 is provided with an optical reflective film 32, which can increase the reflectivity of P polarized light on the windshield 8, so that more light is reflected into the driver's eyes 9, so that the driver wearing polarized sunglasses can see the first image reflected by the first surface 20 of the reflective part 2, obtain the required driving information, and ensure driving safety.

[0061] In this embodiment, the reflectivity of the optical reflective film 32 in the visible light range is 10% to 70%.

[0062] The optical reflective film 32 can be made in the following two ways:

[0063] (1) Coatings achieved by magnetron sputtering, evaporation, chemical plating, etc.

[0064] (2) Paste a film with the same optical function.

[0065] Compared with these two methods, method (1) has a higher cost and a more complicated process, but the optical reflective film produced is more stable and has a longer lifespan; while method (2) has a lower cost and a simpler process, especially easy to operate when replacing the windshield, but the optical reflective film produced is not as stable as the optical reflective film produced by method (1) and has a shorter lifespan.

[0066] In another embodiment, Figure 8 As shown, the display unit 1 also includes a reflector 12, which is used to reflect the first image to the first surface 20 of the reflective unit 2. The reflective unit 2 appears dark at least when the display system is working. The first surface 20 of the reflective unit 2 reflects the first image to form a virtual image of the first image in front of the driver, so that the driver can obtain all driving information without taking his eyes off the road, thereby ensuring driving safety.

[0067] In yet another embodiment, Fig. 9 As shown, the reflective portion 2' is arranged on a reflective plate 7 inside a vehicle, and the reflective portion 2' includes a first surface 20', which reflects the first image and forms a virtual image of the first image in front of the driver, so that the driver can obtain all driving information without taking his sight away from the road, thereby ensuring driving safety.

[0068] Although the utility model has been disclosed as a preferred embodiment, the utility model is not limited thereto. Any changes and modifications made by any person skilled in the art without departing from the spirit and scope of the utility model should be included in the protection scope of the utility model, so the protection scope of the utility model should be based on the scope defined by the claims.

Claims

1. A display system, characterized in that: The display system includes a display part and a reflection part. The display part includes one or more display screens for displaying a first image. The reflection part presents a dark color at least when the display system is working. The reflection part includes a first surface. The first surface is the outer surface of the reflection part facing the display screen. The first surface directly or indirectly reflects the first image displayed on the display screen.

2. The display system according to claim 1, characterized in that: The reflective part is made of glass, metal or plastic.

3. The display system according to claim 1, characterized in that: A dark ink layer, a dark film or a dark paint layer is arranged on the first surface.

4. The display system according to claim 1, characterized in that: The reflective portion includes two or more layers of glass or two or more layers of plastic, a dark ink layer, a dark film or a dark paint layer is arranged between at least two layers, or an electrochromic material, a photochromic material or a thermochromic material is arranged between at least two layers.

5. The display system according to claim 1, wherein: The first surface is provided with an optical reflective film.

6. The display system according to claim 1, wherein: A phase conversion film is provided on the display screen, and the phase conversion film is used to convert the P polarized light emitted by the display screen into S polarized light.

7. The display system according to claim 1, characterized in that: The display unit further includes a reflector, and the first surface indirectly reflects the first image displayed on the display screen via the reflector.

8. A means of transport, characterized in that: The vehicle comprises the display system according to any one of claims 1-7.

9. The vehicle according to claim 8, characterized in that: The reflective portion is arranged on the windshield, window glass or interior decoration of the vehicle.

10. The vehicle according to claim 8, characterized in that: A reflector is arranged in the vehicle, and the reflective part is arranged on the reflector.

Images