CN212708880U - Automatic dimming sun shield with toilet mirror function - Google Patents
Automatic dimming sun shield with toilet mirror function Download PDFInfo
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- CN212708880U CN212708880U CN202021328669.0U CN202021328669U CN212708880U CN 212708880 U CN212708880 U CN 212708880U CN 202021328669 U CN202021328669 U CN 202021328669U CN 212708880 U CN212708880 U CN 212708880U
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Abstract
The utility model provides an automatic light-adjusting sun shield, which comprises a shell, a photosensitive sensor, a human eye tracking camera, a control circuit board, a first liquid crystal light valve and a second liquid crystal light valve which are attached together; the shell is used for fixing the first liquid crystal light valve, the second liquid crystal light valve and the control circuit board, and the human eye tracking camera and the photosensitive sensor are arranged on the shell; the control circuit board is electrically connected with the first liquid crystal light valve, the second liquid crystal light valve, the human eye tracking camera and the photosensitive sensor. The utility model provides a sun visor which can track the signal transmission of the camera through the photosensitive sensor and the human eyes, and achieve the effect that the control circuit board applies electric signals to the partial areas of the first liquid crystal light valve and the second liquid crystal light valve and controls the luminous flux of different areas of the sun visor; the driver can clearly see the driving condition of the front vehicle, the influence of direct irradiation of strong light on the eyes of the driver on the vision of people is avoided, and the driving safety of the user is improved.
Description
Technical Field
The utility model belongs to the technical field of intelligent mobile unit, especially, relate to an automatic sunshading board of adjusting luminance that possesses toilet glass function.
Background
With the progress and development of society, automobiles become irreplaceable vehicles in daily life of people, and the sun visor is used as a part of auxiliary driving, can help a driver to shield strong sunlight in front when the sunlight is strong in the daytime, prevents strong light from influencing the vision of human eyes, and improves the driving safety. However, most of the existing sun visors used for automobiles are made of a whole piece of opaque material, and can only be shielded or not shielded on the whole surface, so that the field of vision of a driver is narrowed by shielding the front light on the whole surface during use, and the driving risk is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provided is an automatic dimming sun visor having a vanity mirror function, which can adjust different luminous fluxes of different regions according to the positions of the eyes of a driver when used for the sun visor function, and can be used for a vanity mirror when used for the mirror function.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the utility model provides an automatic light-adjusting sun-shading board with the function of a toilet glass, which comprises a shell, a photosensitive sensor, a human eye tracking camera, a control circuit board, a first liquid crystal light valve and a second liquid crystal light valve which are arranged in an overlapping way;
the first liquid crystal light valve, the second liquid crystal light valve and the control circuit board are fixed in the shell, and the human eye tracking camera and the photosensitive sensor are arranged on the shell; the control circuit board is electrically connected with the first liquid crystal light valve, the second liquid crystal light valve, the human eye tracking camera and the photosensitive sensor; the first liquid crystal light valve faces the driver and the second liquid crystal light valve faces the front windshield.
Furthermore, two adjacent polarizing layers of the first liquid crystal light valve and the second liquid crystal light valve are bonded together through an optical bonding glue, the directions of light absorption axes of the two adjacent polarizing layers are the same, and the polarizing layer bonded with the first liquid crystal light valve and the second liquid crystal light valve is a semi-transparent semi-reflective mirror surface polarizing plate.
Further, the control circuit board is used for applying voltage to control the first liquid crystal light valve to be switched between a light-transmitting state and a reflecting mirror surface state and control a partial area or a whole area of the second liquid crystal light valve to be switched between a light-transmitting state and an absorbing and shading state.
Further, one side of the conductive layer of the second liquid crystal light valve is a whole electrode, and the other side of the conductive layer is a combination of a plurality of independent electrodes, wherein the shapes of the plurality of independent electrodes include but are not limited to a combination of one or more of a triangle, a quadrangle, a pentagon, a hexagon and a polygon.
Further, the control circuit board is used for applying voltage to control one or more electrode combinations to be electrified, and the electrified electrodes are used for adjusting the luminous flux of the transmitted light through the voltage amplitude or the duty ratio.
Further, the control circuit board is used for applying voltage to control the light path states of transmission, absorption and reflection of the first liquid crystal light valve and the second liquid crystal light valve, and coordinating the dimming states of the first liquid crystal light valve and the second liquid crystal light valve.
Furthermore, the photosensitive sensor is used for sensing the intensity of the front light, converting the intensity into a first electric signal and transmitting the first electric signal to the control circuit board, the control circuit board sends a second electric signal to the eye tracking camera according to the intensity of the light, the eye tracking camera tracks human eyes according to the second electric signal, judges the intensity of the light irradiating the human eyes and converts the intensity into a third electric signal to be transmitted to the control circuit board, and the control circuit board adjusts different luminous fluxes of one or more electrode combinations of the first liquid crystal light valve and the second liquid crystal light valve according to the third electric signal.
Further, the sun visor further comprises a switch for controlling the voltage applied to the first liquid crystal light valve and the second liquid crystal light valve.
Further, the polarizing layer of the outer side of the first liquid crystal light valve facing the driver and the polarizing layer of the outer side of the second liquid crystal light valve facing the front windshield are coated with an optical function coating, and the optical function coating comprises at least one of an antireflection coating, an anti-fingerprint coating and an anti-scratch coating.
The beneficial effects of the utility model reside in that: the control circuit board in the device can receive the electric signal converted from the optical signal sensed by the photosensitive sensor, and control the human eye tracking camera to be opened or closed according to the electric signal, when the human eye tracking camera is opened, the control circuit board can receive the electric signal converted from the optical signal sensed by the human eye tracking camera again, control the power supply to apply the electric signal to partial areas of the first liquid crystal light valve and the second liquid crystal light valve, and control the luminous flux of different areas of the automatic dimming sunshading board.
Drawings
The following detailed description of the specific structure of the present invention with reference to the accompanying drawings
Fig. 1 is a schematic structural view of the sun visor of the present invention;
FIG. 2 is a schematic diagram of a conductive layer structure of a second liquid crystal light valve according to the present invention;
wherein: 100-automatic dimming sun visor; 10-a housing; 20-a first liquid crystal light valve; 30-a second liquid crystal light valve; 32-full-area electrodes; 36-a separate electrode; 40-optical bonding glue; 50-a control circuit board; 60-human eye tracking camera; 70-a light sensitive sensor; 80-change over switch.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1, the present invention provides an automatic dimming sun visor 100, which includes a housing 10, a photosensor 70, a human eye tracking camera 60, a control circuit board 50, and a first liquid crystal light valve 20 and a second liquid crystal light valve 30 attached together; the housing 10 is used for fixing the first liquid crystal light valve 20, the second liquid crystal light valve 30 and the control circuit board 50, the eye tracking camera 60 and the photosensitive sensor 70 are disposed on the housing 10, and the control circuit board 50 is electrically connected to the first liquid crystal light valve 20, the second liquid crystal light valve 30, the eye tracking camera 60 and the photosensitive sensor 70.
In the device, the control circuit board can receive an electric signal converted from an optical signal sensed by the photosensitive sensor, and controls the eye tracking camera to be opened or closed according to the electric signal, when the eye tracking camera is opened, the control circuit board can receive the electric signal converted from the optical signal sensed by the eye tracking camera again, and applies the electric signal to partial areas of the first liquid crystal light valve and the second liquid crystal light valve according to the electric signal to control the luminous flux of different areas of the automatic dimming sun visor, so that the effect of shielding strong light irradiated in the eye area is achieved. The driver can clearly see the driving condition of the front vehicle, the influence of direct irradiation of strong light on the eyes of the driver on the vision of people is avoided, and the driving safety of the user is improved.
Examples
In the present embodiment, the housing 10 is used to fixedly mount the first liquid crystal light valve, the second liquid crystal light valve 30 and the control circuit board 50, the front side of the housing 10 is a side facing the driver, the rear side of the housing 10 is a side facing the front of the vehicle, and the photosensor 70 is disposed on the rear side of the housing 10.
The first liquid crystal light valve and the second liquid crystal light valve can adopt any one random combination of a TN positive structure, a TN negative + dye and a VA negative structure. The light sensor 70 can sense the intensity of the light in front of the vehicle, and convert the light into a first electric signal to be transmitted to the control circuit board 50; the control circuit board 50 sends a second electrical signal to the human eye tracking camera 60 according to the intensity of the first electrical signal; the eye tracking camera 60 tracks the eyes of the driver according to the second electrical signal, judges the intensity of the light irradiated to the eyes, converts the intensity into a third electrical signal and transmits the third electrical signal back to the control circuit board 50; the control circuit board 50 adjusts different voltages of different areas of the first liquid crystal light valve 20 and the second liquid crystal light valve 30 according to the received third electrical signal, and changes the light transmittance of the liquid crystal light valves, thereby completing the light fluxes of different areas and achieving the effect of transmitting light of part of the light-shielding parts of the sun visor 100.
The utility model discloses can adjust luminous flux's effect, control circuit board 50 sends the fourth signal of telecommunication and tracks for the people's eye and track camera 60 and take a picture to the face for the second time, people's face is tracked camera 60 and is tracked face information once more and turn into fifth signal of telecommunication and send control circuit board 50, control circuit board 50 confirms through data analysis whether people's eye region is correctly covered by the shading area of sunshading board, if shading area is incorrect or have the deviation, then control circuit board 50 can be based on the shading area of the regional position readjustment sunshade light valve of people's face, then people's eye is tracked camera 60 and can be taken a picture to the face once more and give control circuit board 50 to information transfer and carry out the analysis and confirm, just shelter from people's eye up.
Through the adjustment, the driver can clearly see the driving condition of the front vehicle, the influence of direct strong light irradiation on the eyes of the driver on the vision of personnel is avoided, and the driving safety of a user is improved.
Referring to fig. 2, further, one of the conductive layers of the second liquid crystal light valve 30 is a whole-surface electrode 32, and the other conductive layer is a combination of a plurality of independent electrodes 36, the shapes of the plurality of independent electrodes 36 include, but are not limited to, a combination of one or more of a triangle, a quadrangle, and a pentagon, and the control circuit board can be used to apply a voltage to control the energization of one or more of the independent electrode combinations, and the energized electrode is used to adjust the luminous flux of the transmitted light by the voltage amplitude or duty ratio.
It should be noted that, the first liquid crystal light valve 20 and the second liquid crystal light valve 30 respectively control the birefringence and retardation of the liquid crystal molecules of the first liquid crystal light valve 20 and the second liquid crystal light valve 30 by voltage to realize the control of light, the outer sides of the two conductive glass substrates are attached with a polarizing layer, the inner sides are coated with an orientation layer, the middle is filled with a liquid crystal material, that is, the inner sides of the oppositely arranged conductive layers are provided with orientation layers, and the middle of the orientation layers is provided with a liquid crystal layer; the orientation layer guides the liquid crystal to be arranged in a certain direction, when voltage is applied to the liquid crystal layer, the product is switched among the states of light transmission, light opacity, mirror surface and the like by matching with the polarization layer, the ITO glass is preferably selected as the glass substrate, and gaps among the ITO glass substrates are controlled by glass fibers with fine edges.
When partial shading is required:
the first liquid crystal light valve 20 is in a transparent state, the area of the second liquid crystal light valve 30 that needs to be shielded is in a non-transparent state, and external light cannot penetrate through the two layers of light valves, so that the shielding effect is achieved.
The areas of the first liquid crystal light valve 20 and the second liquid crystal light valve 30 that do not need to be shielded from light are both in a transparent state, and external light can penetrate through the two layers of light valves, so that a transparent effect is achieved.
When the mirror effect needs to be achieved:
the first liquid crystal light valve 20 is in a mirror state (opaque), the second liquid crystal light valve 30 is in an opaque state, light irradiated from the direction of a driver cannot penetrate and is reflected when passing through the first light valve, the mirror effect is achieved, light irradiated from the front of a vehicle cannot penetrate when passing through the second liquid crystal light valve, and the mirror image is clearer.
By adopting the liquid crystal sun visor 100, the shading area can be flexibly adjusted through the light intensity when driving, and the liquid crystal sun visor can be used as a mirror when not shading, so that the driving safety and convenience are improved.
Further, the automatic dimming sun visor 100 further includes: and a switch 80 connected to the first liquid crystal light valve 20, the second liquid crystal light valve 30, and the control circuit board 50 for switching between the cosmetic mirror function and the sunshade function. The first liquid crystal light valve 20 is in a transparent state, the second liquid crystal light valve 30 is in a partial-area light-shielding and partial-area light-transmitting state, and the first liquid crystal light valve 20 is in a mirror state, and the second liquid crystal light valve 30 is in a non-transparent state.
To sum up, the utility model can change the light transmittance of the liquid crystal light valve by adjusting the light transmittance state of the first liquid crystal light valve and the second liquid crystal light valve in different areas, thereby adjusting the light flux in different areas and realizing the effect of partial shading part of the sun shield for light transmission; meanwhile, the first liquid crystal light valve can be used for a dressing mirror function when in a mirror surface state, and driving safety and convenience are improved.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. An automatic dimming sun visor with a vanity mirror function is characterized by comprising a shell, a photosensitive sensor, a human eye tracking camera, a control circuit board, a first liquid crystal light valve and a second liquid crystal light valve, wherein the first liquid crystal light valve and the second liquid crystal light valve are attached together;
the first liquid crystal light valve, the second liquid crystal light valve and the control circuit board are fixed in the shell, and the human eye tracking camera and the photosensitive sensor are arranged on the shell; the control circuit board is electrically connected with the first liquid crystal light valve, the second liquid crystal light valve, the human eye tracking camera and the photosensitive sensor; the first liquid crystal light valve faces the driver and the second liquid crystal light valve faces the front windshield.
2. The sun visor of claim 1 wherein the two adjacent polarizing layers of the first liquid crystal light valve and the second liquid crystal light valve are bonded together by an optical bonding glue, the light absorption axes of the two adjacent polarizing layers are in the same direction, and the polarizing layers bonded to the first liquid crystal light valve and the second liquid crystal light valve are half-transparent half-reflective mirror polarizers.
3. The visor of claim 1 wherein the control circuit board is adapted to apply a voltage to control the first liquid crystal light valve to switch between the transmissive state and the mirror state and to control the second liquid crystal light valve to switch between the transmissive state and the absorbing and blocking state for a partial area or for a full area.
4. The visor of claim 3 wherein the second liquid crystal light valve has one side of the conductive layer being a full side electrode and the other side of the conductive layer being a combination of a plurality of individual electrodes including but not limited to a combination of one or more of a triangle, a quadrilateral, a pentagon, and a hexagon.
5. A sun visor according to claim 4 wherein the control circuit board is arranged to apply a voltage to control energisation of one or more of the electrode combinations, the energised electrodes being arranged to modulate the luminous flux of transmitted light by either voltage magnitude or duty cycle.
6. The visor of claim 3 wherein the control circuit board is configured to apply a voltage to control the light path states of transmission, absorption and reflection of the first and second liquid crystal light valves and coordinate the dimming states of the first and second liquid crystal light valves.
7. The sun visor of claim 1 wherein the light sensor is configured to sense the intensity of the front light, convert the intensity into a first electrical signal and transmit the first electrical signal to the control circuit board, the control circuit board transmits a second electrical signal to the eye tracking camera according to the intensity of the front light, the eye tracking camera tracks the eyes of the user according to the second electrical signal, determine the intensity of the front light irradiated to the eyes of the user and convert the intensity into a third electrical signal to transmit the third electrical signal to the control circuit board, and the control circuit board adjusts the different luminous fluxes of the one or more electrode combinations of the first and second liquid crystal light valves according to the third electrical signal.
8. The visor of claim 1 further comprising a control circuit board for controlling the voltage applied to the first liquid crystal light valve and the second liquid crystal light valve.
9. The visor of claim 3 wherein the polarizing layer of the outer side of the first liquid crystal light valve facing the driver and the polarizing layer of the outer side of the second liquid crystal light valve facing the front windshield are coated with an optically functional coating comprising at least one of an anti-reflective coating, an anti-fingerprint coating, an anti-scratch coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021328669.0U CN212708880U (en) | 2020-07-08 | 2020-07-08 | Automatic dimming sun shield with toilet mirror function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021328669.0U CN212708880U (en) | 2020-07-08 | 2020-07-08 | Automatic dimming sun shield with toilet mirror function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212708880U true CN212708880U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021328669.0U Active CN212708880U (en) | 2020-07-08 | 2020-07-08 | Automatic dimming sun shield with toilet mirror function |
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| Country | Link |
|---|---|
| CN (1) | CN212708880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111746238A (en) * | 2020-07-08 | 2020-10-09 | 深圳秋田微电子股份有限公司 | Automatic dimming sun shield with toilet mirror function |
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2020
- 2020-07-08 CN CN202021328669.0U patent/CN212708880U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111746238A (en) * | 2020-07-08 | 2020-10-09 | 深圳秋田微电子股份有限公司 | Automatic dimming sun shield with toilet mirror function |
| CN111746238B (en) * | 2020-07-08 | 2022-04-01 | 深圳秋田微电子股份有限公司 | Automatic dimming sun shield with toilet mirror function |
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