CN210894975U - Automobile HUD with linkage color changing mechanism - Google Patents
Automobile HUD with linkage color changing mechanism Download PDFInfo
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- CN210894975U CN210894975U CN201921809388.4U CN201921809388U CN210894975U CN 210894975 U CN210894975 U CN 210894975U CN 201921809388 U CN201921809388 U CN 201921809388U CN 210894975 U CN210894975 U CN 210894975U
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- light
- reflecting
- reflecting screen
- ambient light
- linkage
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Abstract
The utility model provides an automobile HUD with a linkage color changing mechanism, which comprises a control module, an ambient light detector, a projection module and a reflecting screen with adjustable light reflectivity; the projection light emitted by the projection module is directed to the reflecting screen; the projection light reflects the light direction to the driving position at the reflecting screen; the control module detects the ambient light intensity in the cockpit through the ambient light detector, and adjusts the light reflectivity of the reflecting screen according to the ambient light intensity, so that the display brightness of the reflecting screen is matched with the ambient light intensity to be suitable for being clearly watched by human eyes; the utility model discloses can adjust the reflection rate according to the ambient light intensity and change car HUD's demonstration luminance.
Description
Technical Field
The utility model belongs to the technical field of the mobile unit technique and specifically relates to a car HUD that possesses linkage mechanism of discolouing.
Background
The principle of the vehicle-mounted HUD display is that an image is projected onto a front windshield of an automobile, so that a driver can master various reminding information including speed, rotating speed, fuel, time, warning and even navigation without looking down at an instrument panel, more attention is focused on observing the road condition, and the driving safety is improved; however, the illumination of the external environment changes all the time due to the driving process. When the ambient light is weak (such as at night), the brightness of the HUD display picture is too high, which can stimulate human eyes; in the presence of strong ambient light (e.g., at noon), the HUD requires a high brightness display to see the content.
In the prior art, the method for adjusting the brightness of the HUD picture is to adjust the LED brightness level of the projection device independently, but the method has the following disadvantages:
1) high Back Light is needed, and energy consumption and cost are high;
2) after the brightness of the projection equipment is adjusted, the light is reflected to human eyes through the reflecting layer, and the reflecting layer is also influenced by external light;
3) environmental illumination, projection equipment, the unable linkage that forms between the reflection stratum three change, the whole light adaptability of HUD display screen is relatively poor.
Disclosure of Invention
The utility model provides a car HUD who possesses linkage mechanism of discolouing can adjust the reflection rate according to the ambient light intensity and change car HUD's demonstration luminance.
The utility model adopts the following technical scheme.
An automobile HUD with a linkage color changing mechanism comprises a control module, an ambient light detector, a projection module and a reflecting screen with adjustable light reflectivity; the projection light emitted by the projection module is directed to the reflecting screen; the projection light reflects the light direction to the driving position at the reflecting screen; the control module detects the ambient light intensity in the cockpit through the ambient light detector, and adjusts the light reflectivity of the reflecting screen according to the ambient light intensity, so that the display brightness of the reflecting screen is matched with the ambient light intensity to be suitable for being clearly watched by human eyes.
The reflecting screen is a light-permeable reflecting screen; the reflecting surface of the reflecting screen is an electrochromic reflecting surface.
When the intensity of ambient light in the cockpit is increased to be higher than a threshold value, the control module reduces the light reflectivity of the reflecting screen;
when the intensity of ambient light in the cockpit decreases below a threshold value, the control module increases the light reflectivity of the reflective screen.
The electrochromic reflecting surface is formed by a material capable of adjusting the light transmittance by adjusting the molecular arrangement structure through an electric effect;
when the molecular arrangement structure is a molecular irregular dispersion structure due to an electric effect, the electrochromic reflecting surface is a reflecting surface with low light transmittance and high light reflectance;
when the molecular arrangement structure is a molecular regular dispersion structure due to an electrical effect, the electrochromic reflective surface is a reflective surface having high light transmittance and low light reflectance.
The reflecting screen is attached to the lower part of the front window glass of the cockpit; the projection module comprises a projector and a projection light path; the projection light path comprises a first reflecting mirror and a second reflecting mirror which are arranged in sequence; and the projection light emitted by the projector is reflected by the first reflecting mirror and the second reflecting mirror and then emitted to the reflecting screen.
The selected range of the projector comprises a projector with low brightness.
The control module includes an in-vehicle ECU. .
The control module can adjust the light reflectivity of the reflecting screen according to the on-off state of the headlights of the vehicle.
The control module can monitor the ambient light intensity outside the vehicle through the vehicle exterior sensor and adjust the light reflectivity of the reflecting screen according to the ambient light intensity outside the vehicle.
The utility model has the advantages that:
1) the projection equipment and the reflecting surface (electrochromic material) are changed in a linkage manner to adapt to different ambient light changes, so that the definition of a picture is kept;
2) the traditional mode of independently adjusting the brightness of the projection equipment is distinguished, and the projector without high brightness is automatically matched and adjusted in a linkage manner, so that energy can be saved and the cost can be reduced;
3) the utility model relates to a color-changing material adjusts the transmissivity of light through adjusting the inside compound molecule range state of material, can let the light reflectivity of reflecting screen change more evenly.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic diagram of the projection light path of the present invention;
FIG. 3 is a schematic view of the working principle of the present invention;
FIG. 4 is a schematic diagram of the reflective screen in high reflectivity (opaque);
FIG. 5 is a schematic diagram of the principle of the reflective screen in low reflectivity (transparent);
in the figure: 1-human eye; 2-a first mirror; 3-a projector; 4-a second mirror; 5-cockpit front window glass; 6-a control module; 7-ambient light detector; 8-a projection module; 9-reflective screen.
Detailed Description
As shown in fig. 1 to 5, an automobile HUD with a linkage color-changing mechanism includes a control module 6, an ambient light detector 7, a projection module 8, and a reflective screen 9 with adjustable light reflectivity; the projection light emitted by the projection module is directed to the reflecting screen; the projection light reflects the light direction to the driving position at the reflecting screen; the control module detects the ambient light intensity in the cockpit through the ambient light detector, and adjusts the light reflectivity of the reflecting screen according to the ambient light intensity, so that the display brightness of the reflecting screen is matched with the ambient light intensity to be suitable for being clearly watched by human eyes 1.
The reflecting screen is a light-permeable reflecting screen; the reflecting surface of the reflecting screen is an electrochromic reflecting surface.
When the intensity of ambient light in the cockpit is increased to be higher than a threshold value, the control module reduces the light reflectivity of the reflecting screen;
when the intensity of ambient light in the cockpit decreases below a threshold value, the control module increases the light reflectivity of the reflective screen.
The electrochromic reflecting surface is formed by a material capable of adjusting the light transmittance by adjusting the molecular arrangement structure through an electric effect;
when the molecular arrangement structure is a molecular irregular dispersion structure due to an electric effect, the electrochromic reflecting surface is a reflecting surface with low light transmittance and high light reflectance;
when the molecular arrangement structure is a molecular regular dispersion structure due to an electrical effect, the electrochromic reflective surface is a reflective surface having high light transmittance and low light reflectance.
The reflecting screen is attached to the lower part of the front window glass 5 of the cockpit; the projection module comprises a projector 3 and a projection light path; the projection optical path comprises a first reflecting mirror 2 and a second reflecting mirror 4 which are arranged in sequence; and the projection light emitted by the projector is reflected by the first reflecting mirror and the second reflecting mirror and then emitted to the reflecting screen.
The selected range of the projector comprises a projector with low brightness.
The control module includes an in-vehicle ECU. .
The control module can adjust the light reflectivity of the reflecting screen according to the on-off state of the headlights of the vehicle.
The control module can monitor the ambient light intensity outside the vehicle through the vehicle exterior sensor and adjust the light reflectivity of the reflecting screen according to the ambient light intensity outside the vehicle.
Example 1:
when the vehicle goes, if the environment is overcast and rainy day that external light is weaker, for preventing the high brightness display of reflecting screen from amazing the people's eye, control module promotes the light transmission ability of reflecting screen, makes the light of projecting apparatus more transmit outside the car to reduce the luminance of reflecting screen, let the driver can comfortably watch the reflecting screen.
Example 2:
travel when night, when the high beam was opened to the opposite car that comes, the ambient light that causes before the door window was too bright, in order to let the driver can accurately watch HUD, control module reduced the light transmission ability of reflecting screen, made the high beam light of the opposite car that comes block by the HUD reflecting screen to make the light of projecting apparatus reflect to the driver's cabin more, promote reflecting screen luminance, let the driver see clearly the demonstration content of HUD reflecting screen.
Claims (9)
1. The utility model provides an automobile HUD that possesses linkage mechanism of discolouing which characterized in that: the automobile HUD comprises a control module, an ambient light detector, a projection module and a reflecting screen with adjustable light reflectivity; the projection light emitted by the projection module is directed to the reflecting screen; the projection light reflects the light direction to the driving position at the reflecting screen; the control module detects the ambient light intensity in the cockpit through the ambient light detector, and adjusts the light reflectivity of the reflecting screen according to the ambient light intensity, so that the display brightness of the reflecting screen is matched with the ambient light intensity to be suitable for being clearly watched by human eyes.
2. The automotive HUD with linkage color-changing mechanism according to claim 1, wherein: the reflecting screen is a light-permeable reflecting screen; the reflecting surface of the reflecting screen is an electrochromic reflecting surface.
3. The automotive HUD with linkage color-changing mechanism according to claim 2, wherein: when the intensity of ambient light in the cockpit is increased to be higher than a threshold value, the control module reduces the light reflectivity of the reflecting screen;
when the intensity of ambient light in the cockpit decreases below a threshold value, the control module increases the light reflectivity of the reflective screen.
4. The automotive HUD with linkage color-changing mechanism according to claim 2, wherein: the electrochromic reflecting surface is formed by a material capable of adjusting the light transmittance by adjusting the molecular arrangement structure through an electric effect;
when the molecular arrangement structure is a molecular irregular dispersion structure due to an electric effect, the electrochromic reflecting surface is a reflecting surface with low light transmittance and high light reflectance;
when the molecular arrangement structure is a molecular regular dispersion structure due to an electrical effect, the electrochromic reflective surface is a reflective surface having high light transmittance and low light reflectance.
5. The automotive HUD with linkage color-changing mechanism according to claim 2, wherein: the reflecting screen is attached to the lower part of the front window glass of the cockpit; the projection module comprises a projector and a projection light path; the projection light path comprises a first reflecting mirror and a second reflecting mirror which are arranged in sequence; and the projection light emitted by the projector is reflected by the first reflecting mirror and the second reflecting mirror and then emitted to the reflecting screen.
6. The automotive HUD with linkage color-changing mechanism according to claim 5, wherein: the selection range of projectors includes low brightness projectors.
7. The automotive HUD with linkage color-changing mechanism according to claim 1, wherein: the control module includes an in-vehicle ECU.
8. The automotive HUD with linkage color-changing mechanism according to claim 7, wherein: the control module can adjust the light reflectivity of the reflecting screen according to the on-off state of the headlights of the vehicle.
9. The automotive HUD with linkage color-changing mechanism according to claim 7, wherein: the control module can monitor the ambient light intensity outside the vehicle through the vehicle exterior sensor and adjust the light reflectivity of the reflecting screen according to the ambient light intensity outside the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921809388.4U CN210894975U (en) | 2019-10-25 | 2019-10-25 | Automobile HUD with linkage color changing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921809388.4U CN210894975U (en) | 2019-10-25 | 2019-10-25 | Automobile HUD with linkage color changing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210894975U true CN210894975U (en) | 2020-06-30 |
Family
ID=71338409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921809388.4U Expired - Fee Related CN210894975U (en) | 2019-10-25 | 2019-10-25 | Automobile HUD with linkage color changing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210894975U (en) |
-
2019
- 2019-10-25 CN CN201921809388.4U patent/CN210894975U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200630 Termination date: 20201025 |