CN110989173A - Display system - Google Patents
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- CN110989173A CN110989173A CN201911378908.5A CN201911378908A CN110989173A CN 110989173 A CN110989173 A CN 110989173A CN 201911378908 A CN201911378908 A CN 201911378908A CN 110989173 A CN110989173 A CN 110989173A
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- windshield
- optical film
- liquid crystal
- transparent optical
- display system
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Instrument Panels (AREA)
Abstract
The invention discloses a display system, wherein a light absorption axis of an upper polarizer on a light-emitting surface of a liquid crystal display device is vertical to a plane of a windshield so as to ensure that the liquid crystal display device can emit s-polarized light capable of being reflected by the windshield, a transparent optical film material is arranged on an optical path projected to the windshield by the liquid crystal display device, the transparent optical film material can convert part of the s-polarized light emitted by the liquid crystal display device into p-polarized light and projects the p-polarized light to the windshield, and the s-polarized light and the p-polarized light exist in reflected light passing through the windshield at the same time, so that a driver can view the p-polarized light reflected by the windshield when wearing a sunglasses, and the effect that the vehicle-mounted display system can use the sunglasses to view is realized. Meanwhile, when the driver does not wear sunglasses, the driver can also view the image of the vehicle-mounted display system.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display system.
Background
Head Up Display (HUD), also called parallel Display system, refers to a multifunctional instrument panel that is operated blindly and centered on the driver. The automobile navigation system has the function of projecting important driving information such as speed per hour, navigation and the like onto a windshield in front of a driver, so that the driver can see the important driving information such as speed per hour, navigation and the like without lowering head or turning head as much as possible.
The head-up display system is implemented by using front windshield reflection imaging, and the sunglasses (sunglasses) worn by the driver are used for filtering road surface reflection light. According to the imaging principle of the existing head-up display system, the sunglasses worn by the driver can filter out the display light of the head-up display system, so that the driver wearing the sunglasses cannot watch the head-up display system, namely, the sunglasses and the head-up display system cannot be used simultaneously.
Disclosure of Invention
The embodiment of the invention provides a display system, which is used for solving the problem that a head-up display system and sunglasses cannot be used simultaneously in the prior art.
An embodiment of the present invention provides a display system, including:
a windshield;
the liquid crystal display device comprises an upper polaroid positioned on a light-emitting surface, a light absorption axis of the upper polaroid is vertical to the plane of the windshield, and an image projected by the liquid crystal display device is reflected on the windshield;
and the transparent optical film is positioned on an optical path projected to the windshield by the liquid crystal display device and is used for converting part of s-polarized light emitted by the liquid crystal display device into p-polarized light.
Optionally, in the display system provided in the embodiment of the present invention, the transparent optical film is attached to a surface of an upper polarizer of the liquid crystal display device.
Optionally, in the display system provided in the embodiment of the present invention, the transparent optical film is attached to a surface of the windshield.
Optionally, in the display system provided in the embodiment of the present invention, the transparent optical film is attached to a surface of the windshield on a side facing the liquid crystal display device, or the transparent optical film is attached to a surface of the windshield on a side facing away from the liquid crystal display device.
Optionally, in the display system provided in an embodiment of the present invention, the transparent optical film is attached to a surface of the windshield facing the liquid crystal display device, and a local optical filter is disposed on a surface of the windshield facing away from the transparent optical film.
Optionally, in the display system provided in the embodiment of the present invention, an ambient light reflectivity of the local filter is greater than 40%.
Optionally, in the display system provided in the embodiment of the present invention, the display system further includes: the lifting device is used for driving the transparent optical film to be arranged on the surface of the windshield when receiving a first instruction sent by a user by using the control module, and driving the transparent optical film to avoid the surface of the windshield when receiving a second instruction sent by the user by using the control module.
Optionally, in the display system provided in the embodiment of the present invention, the display system further includes: the lifting device is used for driving the transparent optical film to be arranged on the light emitting surface of the liquid crystal display device when receiving a first instruction sent by a user to use the control module, and driving the transparent optical film to avoid the light emitting surface of the liquid crystal display device when receiving a second instruction sent by the user to use the control module.
Optionally, in the display system provided in the embodiment of the present invention, the lifting device includes: the power module and a telescopic component fixed with the transparent optical film material; the control module comprises a button module, the button module is used for receiving the first instruction and the second instruction, and the power module is used for driving the telescopic component to move according to the first instruction or the second instruction.
Optionally, in the display system provided in the embodiment of the present invention, the transparent optical film is an 1/4 glass slide.
Optionally, in the display system provided in the embodiment of the present invention, the liquid crystal display device further includes a lower polarizer located on the light incident surface, and a light absorption axis of the lower polarizer is perpendicular to a light absorption axis of the upper polarizer.
The invention has the following beneficial effects:
in the display system provided by the embodiment of the invention, the light absorption axis of the upper polarizer on the light-emitting surface of the liquid crystal display device is vertical to the plane of the windshield, so that the liquid crystal display device can emit s-polarized light capable of being reflected by the windshield, and the transparent optical film material is arranged on the optical path of the liquid crystal display device projected to the windshield, the transparent optical film material can convert part of the s-polarized light emitted by the liquid crystal display device into p-polarized light and projects the p-polarized light to the windshield, and the s-polarized light and the p-polarized light exist in the reflected light passing through the windshield at the same time, so that a driver can view the p-polarized light reflected by the windshield when wearing the sunglasses, and the effect that the vehicle-mounted display system can view the light by using the sunglasses is realized. Meanwhile, when the driver does not wear sunglasses, the driver can also view the image of the vehicle-mounted display system.
Drawings
FIG. 1 is a schematic diagram of a prior art head-up display system;
FIG. 2 is a schematic representation of the prior art Brewster's law;
FIG. 3 is a schematic structural diagram of a display system according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a display system according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a display system according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a display system according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a display system according to an embodiment of the present invention;
fig. 8 is another schematic structural diagram of a display system according to an embodiment of the present invention.
Detailed Description
The head-up display system is implemented by using the front windshield to reflect and image, as shown in fig. 1, the light emitted from the liquid crystal display device 01 is emitted to the front windshield at a large angle (generally 60-70 degrees)The glass 02 is reflected by the front windshield 02 and then enters human eyes, and is in a position where a virtual image, that is, a virtual line in fig. 1, converges in front of the front windshield 02. As shown in fig. 2, according to brewster's law, the reflected light is partially polarized light and is mostly s-polarized light, and p-polarized light is absorbed by the front windshield 02, that is, light reflected by the front windshield 02 vibrates more vertically (perpendicular to the incident surface) than in parallel. In FIG. 2, the angle of the incident light and the angle of the reflected light are ibThe angle of light absorption is r0Refractive index of air n1Refractive index of front windshield glass is n2. Therefore, it is required that the light absorption axis of the upper polarizer in the liquid crystal display device 01 must be perpendicular to the plane of the front windshield 02 to realize that the light emitted from the liquid crystal display device 01 is reflected by the front windshield 02. The principle of sunglasses (Sunglass) worn by a driver is to filter out road surface reflected light, namely the sunglasses can filter out s-polarized light, so that the driver cannot view the light reflected by the front windshield 02 when wearing the sunglasses, and therefore the head-up display system cannot be used.
The embodiment of the invention provides a display system, aiming at the problem that a vehicle-mounted display system in the prior art cannot use sunglasses. In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of a display system according to an embodiment of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments described below are only for illustrating and explaining the present invention and are not to be used for limiting the present invention. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the invention.
An embodiment of the present invention provides a display system, as shown in fig. 3 to 6, including:
a windshield 1;
the liquid crystal display device 2 comprises an upper polaroid 21 positioned on the light-emitting surface, the light absorption axis of the upper polaroid 21 is vertical to the plane of the windshield 1, and an image projected by the liquid crystal display device 2 is reflected on the windshield 1;
and a transparent optical film 3 positioned on an optical path of the liquid crystal display device 2 projected onto the windshield 1, wherein the transparent optical film 3 is used for converting part of s-polarized light emitted from the liquid crystal display device 2 into p-polarized light.
It should be noted that the image projected by the lcd device 2 onto the windshield 1 forms a projection area on the windshield 1, and the optical path refers to a spatial area through which light rays pass from the exit surface of the lcd device 2 to the projection area.
Specifically, in the display system provided in the embodiment of the present invention, a light absorption axis of the upper polarizer 21 on the light emitting surface of the liquid crystal display device 2 is perpendicular to the plane of the windshield 1, so as to ensure that the liquid crystal display device 2 can emit s-polarized light capable of being reflected by the windshield 1, and a transparent optical film 3 is disposed on an optical path of the liquid crystal display device 2 projected to the windshield 1, the transparent optical film 3 can convert a part of the s-polarized light emitted by the liquid crystal display device 2 into p-polarized light and project the p-polarized light to the windshield 1, and the s-polarized light and the p-polarized light exist in reflected light passing through the windshield 1 at the same time, so that a driver can view the p-polarized light reflected by the windshield 1 when wearing the sunglasses, and an effect that the vehicle-mounted display system can view the light using the sunglasses is achieved. Meanwhile, when the driver does not wear sunglasses, the driver can also view the image of the vehicle-mounted display system.
Optionally, in the display system provided in the embodiment of the present invention, the transparent optical film 3 may be specifically an 1/4 slide or another slide, which is not limited herein. 1/4 the slide can partially convert the transmitted s-polarized light to p-polarized light.
Alternatively, in the display system provided in the embodiment of the present invention, as shown in fig. 3, the transparent optical film 3 may be attached to the surface of the upper polarizer 21 of the liquid crystal display device 1. At this time, the s-polarized light emitted from the surface of the upper polarizer 21 of the liquid crystal display device 1 is partially converted into p-polarized light by the transparent optical film 3, and then, after reflection by the windshield 1, a part of the p-polarized light is lost, which is lower in brightness than that observed when the driver does not wear sunglasses without the transparent optical film 3. However, compared with the case where the transparent optical film material 3 is not provided and when the driver wears the sunglasses, since the sunglasses filter out all the s-polarized light, the reflected p-polarized light can be viewed through the sunglasses, so that the vehicle-mounted display system can realize the effect that the sunglasses can be used for viewing.
Alternatively, in the display system provided in the embodiment of the present invention, as shown in fig. 4 to 6, the transparent optical film 3 may also be attached to the surface of the windshield 1.
Alternatively, in the display system provided in the embodiment of the present invention, as shown in fig. 4, the transparent optical film 3 may be attached to a surface of the windshield 1 facing the liquid crystal display device 2, or, as shown in fig. 5, the transparent optical film 3 may also be attached to a surface of the windshield 1 facing away from the liquid crystal display device 2.
At this time, the s-polarized light emitted from the surface of the upper polarizer 21 of the liquid crystal display device 1 is projected to the transparent optical film 3 attached to the surface of the windshield 1, and a part of the s-polarized light is converted into p-polarized light and is totally reflected, so that the viewing brightness is unchanged compared with that when the transparent optical film 3 is not provided and when the driver does not wear sunglasses. However, compared with the vehicle-mounted display system which is not provided with the transparent optical film material 3 and in which all s-polarized light is filtered by the sunglasses when the driver wears the sunglasses, the vehicle-mounted display system can achieve the effect that only the reflected s-polarized light is filtered by the sunglasses, and the vehicle-mounted display system can be viewed by using the sunglasses.
The brightness change can be obtained by comparing the actual tests in the following table 1, the brightness observed when the sunglasses are not worn and the transparent optical film material 3 is attached to the surface of the windshield 1 is equal to and is the maximum brightness observed when the sunglasses are not worn and the transparent optical film material 3 is not arranged, the brightness observed when the sunglasses are not worn and the transparent optical film material 3 is attached to the surface of the upper polarizer 21 of the liquid crystal display device 1 is the second brightness, the brightness observed when the sunglasses are worn and the transparent optical film material 3 is attached to the surface of the windshield 1 is the second brightness observed when the sunglasses are worn and the transparent optical film material 3 is not arranged, and the brightness observed when the sunglasses are worn and the transparent optical film.
TABLE 1
D0> D2> D3> D4> D5 in Table 1 above.
Alternatively, in the display system provided in the embodiment of the present invention, as shown in fig. 6, when the transparent optical film 3 is attached to the surface of the windshield 1 facing the liquid crystal display device 2, the local optical filter 4 may be attached to the surface of the windshield 1 away from the transparent optical film 3, that is, the transparent optical film 3 may be considered to be attached to the inner side of the windshield 1, and the local optical filter 4 may be attached to the outer side of the windshield 1.
Specifically, the local optical filter 4 attached to the outer side of the windshield 1 can filter the ambient light incident from the outer side to the inner side of the windshield 1, so that the use condition of sunglasses is reduced for a driver, the interference of the ambient light is reduced, and the image visibility of the head-up display system can be improved.
Specifically, the local filter 4 may be a reflective sheet or a wave absorbing material, and is not limited herein as long as it can function to filter ambient light irradiated from the outside of the vehicle to the windshield 1. The projections of the local optical filter 4 and the transparent optical film 3 on the windshield 1 can be overlapped, namely, the local optical filter 4 and the transparent optical film 3 are respectively attached to the outer side and the inner side of the same position of the windshield 1; alternatively, the partial filter 4 may be attached to the outer side of the windshield 1 over the entire surface, and is not limited thereto.
Optionally, in the display system provided in the embodiment of the present invention, the ambient light reflectivity of the local optical filter 4 generally needs to be greater than 40%, so that even in a burning sun, the display system can achieve high ambient contrast and brightness without increasing the brightness of the backlight, so as to achieve the purposes of saving power consumption, prolonging the service life of the display system, reducing the wearing necessity of sunglasses, and improving the display effect when sunglasses are worn.
Specifically, the reflectance and transmittance of the windshield 1 are calculated interchangeably: r is ((n-1)/(n +1)) ^2, and if n is equal to 1.5, r can be calculated to be 4%. When the light beam strikes the windshield 1 close to normal incidence (i.e., the angle of incidence θ is approximately equal to 0): the calculation formula of the reflectivity is as follows:
R＝(n1-n2)^2/(n1+n2)^2 ①
wherein, under different wavelengths of light, the refractive indexes are different, n1 and n2 are the refractive indexes of two media, n1 is the refractive index of the local filter 4, and n2 is the refractive index of glass approximately equal to 1.5. For example, n1 of common rutile titanium dioxide is 2.7, where R is 8%; from the desired value of R, the refractive index n1 can be derived.
Moreover, when the light continuously passes through two transparent media with different refractive indexes, namely the local filter 4+ the windshield 1, the reflection rate of the light is also related to the thickness of the media due to the interference effect generated by the reflected light at different interfaces. The local filter 4 on the windshield 1 with a specific thickness and a specific refractive index can be designed to obtain a larger reflectivity or transmittance for specific wavelength light waves so as to reduce the interference of ambient stray light on the projection view of the head-up display system.
Specifically, the thickness of the maximum reflectance corresponds to the formula:
(2z+1)*λ/4＝d*√(n^2-sinα^2) ②
wherein z is a sequence number, λ is a wavelength, d is a thickness, n is a refractive index, α is an incident angle, the incident angle α of the windshield 1 under a typical midday hot sun is approximately equal to 45 degrees, the wavelength λ of the blue-violet light is less than 505, and the value is typically 472nm, and n1 calculated according to the formula 1 is substituted to obtain the optimal thickness d.
Thus, for example, if the ambient light reflectance R of the local filter 4 is desired to be 40%, then n1 may be 6.67 using equation ①, and d 18.2 × 2z +1 nm using equation ②.
Specifically, in the display system provided in the embodiment of the present invention, since the driver generally only needs to wear the sunglasses when the ambient light is strong, the number of situations that the driver needs to view the on-vehicle display through the sunglasses is small, and therefore, the transparent optical film material 3 may be lifted only when the sunglasses are used, that is, the transparent optical film material 3 may be placed on the optical path through which the liquid crystal display device 2 projects onto the windshield 1, and the transparent optical film material 3 may be lowered when the sunglasses are not used. Therefore, the problem of poor reliability caused by complicated replacement when the transparent optical film material 3 is failed due to the fact that the transparent optical film material 3 is attached to the surface of the liquid crystal display device 2 or the windshield 1 for a long time can be effectively solved.
Based on this, optionally, in the above display system provided in the embodiment of the present invention, as shown in fig. 7, the method may further include: the lifting device 5 is fixed with the transparent optical film material 3, and the control module 6 is electrically connected with the lifting device 5, wherein the lifting device 5 is used for driving the transparent optical film material 3 to be arranged on the surface of the windshield 1 when receiving a first instruction sent by the control module 6 used by a user, and driving the transparent optical film material 3 to avoid the surface of the windshield 1 when receiving a second instruction sent by the control module 6 used by the user. That is, when the user (driver) determines that the sunglasses need to be worn, a first instruction is sent to the control module 6, and the lifting device 5 drives the transparent optical film 3 to be placed on the surface of the windshield 1. When the user (driver) judges that the sunglasses are not required to be worn, a second instruction is sent to the control module 6, and the transparent optical film 3 is retracted by the lifting device 5, specifically, the transparent optical film 3 can be hidden to the frame of the windshield 1.
Or, optionally, in the display system provided in the embodiment of the present invention, as shown in fig. 8, the display system may further include: the lifting device 5 is used for driving the transparent optical film 3 to be arranged on the light-emitting surface of the liquid crystal display device 2 when receiving a first instruction sent by a user to use the control module 6, and driving the transparent optical film 3 to avoid the light-emitting surface of the liquid crystal display device 2 when receiving a second instruction sent by the user to use the control module 6. That is, when the user (driver) determines that the sunglasses need to be worn, a first instruction is sent to the control module 6, and the lifting device 5 drives the transparent optical film 3 to be placed on the surface of the liquid crystal display device 2. When the user (driver) determines that the sunglasses are not required to be worn, a second instruction is sent to the control module 6, and the lifting device 5 retracts the transparent optical film 3, specifically, the transparent optical film 3 can be hidden inside the liquid crystal display device 2. Specifically, the lifting device 5 and the control module 6 may be fixed inside the vehicle body.
Optionally, in the display system provided in the embodiment of the present invention, as shown in fig. 7 and 8, the lifting device 5 may specifically include: a power module 51 and a telescopic member 52 fixed to the transparent optical film 3; the control module 6 may include a button module 61, where the button module 61 is configured to receive a first command and a second command, and the power module 51 is configured to drive the telescopic member 52 to move according to the first command or the second command.
Specifically, when a user (driver) determines that sunglasses need to be worn, the button module 61 is pressed, the button module 61 sends a corresponding electric signal to the power module 51 after receiving the first instruction, and the power module 51 drives the telescopic component 52 to move, so that the transparent optical film material 3 moves to the surface of the liquid crystal display device 2 or the windshield 1. When a user (driver) judges that the sunglasses are not required to be worn, the button module 61 is pressed, the button module 61 sends a corresponding electric signal to the power module 51 after receiving a second instruction, and the power module 51 drives the telescopic component 52 to move, so that the transparent optical film material 3 moves out of the surface of the liquid crystal display device 2 or the windshield 1.
Specifically, the power module 51 includes, but is not limited to, an electric motor and the like, and the button module 61 includes, but is not limited to, a button image displayed by the liquid crystal display device 2 or a button member having an actual tactile sensation, and the like.
Optionally, in the display system provided in the embodiment of the present invention, the liquid crystal display device 2 may further include a lower polarizer 22 located on the light incident surface, and a light absorption axis of the lower polarizer 22 is perpendicular to a light absorption axis of the upper polarizer 21. Specifically, the light incident surface refers to the light incident surface of the liquid crystal display panel in the liquid crystal display device 2, for example, the light absorption axis of the lower polarizer 22 may be 0, and the light absorption axis of the upper polarizer 21 may be 90 degrees. The liquid crystal display device 2 may further include, but is not limited to, a prism and other components for controlling the light emitting angle, and will not be described in detail herein.
In the display system provided by the embodiment of the invention, the light absorption axis of the upper polarizer on the light-emitting surface of the liquid crystal display device is perpendicular to the plane of the windshield, so that the liquid crystal display device can emit s-polarized light capable of being reflected by the windshield, and the transparent optical film material is arranged on the optical path of the liquid crystal display device projected to the windshield, the transparent optical film material can convert part of the s-polarized light emitted by the liquid crystal display device into p-polarized light and projects the p-polarized light to the windshield, and the s-polarized light and the p-polarized light exist in the reflected light passing through the windshield at the same time, so that a driver can view the p-polarized light reflected by the windshield when wearing the sunglasses, and the effect that the vehicle-mounted display system can view the light by using the sunglasses is. Meanwhile, when the driver does not wear sunglasses, the driver can also view the image of the vehicle-mounted display system.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (11)
1. A display system, comprising:
a windshield;
the liquid crystal display device comprises an upper polaroid positioned on a light-emitting surface, a light absorption axis of the upper polaroid is vertical to the plane of the windshield, and an image projected by the liquid crystal display device is reflected on the windshield;
and the transparent optical film is positioned on an optical path projected to the windshield by the liquid crystal display device and is used for converting part of s-polarized light emitted by the liquid crystal display device into p-polarized light.
2. The display system of claim 1, wherein the transparent optical film is attached to a surface of an upper polarizer of the liquid crystal display device.
3. The display system of claim 1, wherein the transparent optical film is affixed to a surface of the windshield.
4. The display system of claim 3, wherein the transparent optical film is attached to a surface of the windshield on a side facing the liquid crystal display device or wherein the transparent optical film is attached to a surface of the windshield on a side facing away from the liquid crystal display device.
5. The display system of claim 4, wherein the transparent optical film is attached to a surface of the windshield facing the liquid crystal display device, and a local filter is disposed on a surface of the windshield facing away from the transparent optical film.
6. The display system of claim 5, wherein the local filter has an ambient light reflectance greater than 40%.
7. The display system of claim 1, further comprising: the lifting device is used for driving the transparent optical film to be arranged on the surface of the windshield when receiving a first instruction sent by a user by using the control module, and driving the transparent optical film to avoid the surface of the windshield when receiving a second instruction sent by the user by using the control module.
8. The display system of claim 1, further comprising: the lifting device is used for driving the transparent optical film to be arranged on the light emitting surface of the liquid crystal display device when receiving a first instruction sent by a user to use the control module, and driving the transparent optical film to avoid the light emitting surface of the liquid crystal display device when receiving a second instruction sent by the user to use the control module.
9. The display system of claim 7 or 8, wherein the lifting device comprises: the power module and a telescopic component fixed with the transparent optical film material; the control module comprises a button module, the button module is used for receiving the first instruction and the second instruction, and the power module is used for driving the telescopic component to move according to the first instruction or the second instruction.
10. The display system of any one of claims 1-8, wherein the transparent optical film is an 1/4 slide.
11. The display system of any one of claims 1-8, wherein the liquid crystal display device further comprises a lower polarizer disposed at the light incident surface, and a light absorption axis of the lower polarizer is perpendicular to a light absorption axis of the upper polarizer.
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| CN201911378908.5A CN110989173A (en) | 2019-12-27 | 2019-12-27 | Display system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815416A (en) * | 2021-08-17 | 2021-12-21 | 黑龙江天有为电子有限责任公司 | Motormeter dish and car |
| WO2023138076A1 (en) * | 2022-01-21 | 2023-07-27 | 华为技术有限公司 | Display apparatus and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010113197A (en) * | 2008-11-07 | 2010-05-20 | Nippon Seiki Co Ltd | Head-up display device |
| US20180074313A1 (en) * | 2016-09-15 | 2018-03-15 | Denso Corporation | Projection Member, Head Up Display Device, And Polarized Sunglasses |
| JP2018189837A (en) * | 2017-05-09 | 2018-11-29 | カルソニックカンセイ株式会社 | Head-up display device |
| CN109661606A (en) * | 2016-09-06 | 2019-04-19 | 麦克赛尔株式会社 | Head-up display and its image display used |
| WO2019102775A1 (en) * | 2017-11-22 | 2019-05-31 | 日本精機株式会社 | Head-up display device |
-
2019
- 2019-12-27 CN CN201911378908.5A patent/CN110989173A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010113197A (en) * | 2008-11-07 | 2010-05-20 | Nippon Seiki Co Ltd | Head-up display device |
| CN109661606A (en) * | 2016-09-06 | 2019-04-19 | 麦克赛尔株式会社 | Head-up display and its image display used |
| US20180074313A1 (en) * | 2016-09-15 | 2018-03-15 | Denso Corporation | Projection Member, Head Up Display Device, And Polarized Sunglasses |
| JP2018189837A (en) * | 2017-05-09 | 2018-11-29 | カルソニックカンセイ株式会社 | Head-up display device |
| WO2019102775A1 (en) * | 2017-11-22 | 2019-05-31 | 日本精機株式会社 | Head-up display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815416A (en) * | 2021-08-17 | 2021-12-21 | 黑龙江天有为电子有限责任公司 | Motormeter dish and car |
| CN113815416B (en) * | 2021-08-17 | 2023-02-03 | 黑龙江天有为电子有限责任公司 | Motormeter dish and car |
| WO2023138076A1 (en) * | 2022-01-21 | 2023-07-27 | 华为技术有限公司 | Display apparatus and vehicle |
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