TWM632417U - Anti-glare structure of liquid crystal electric rearview mirror - Google Patents

Abstract

An anti-glare structure of a liquid crystal electronic rearview mirror mainly includes a control circuit, a liquid crystal display, a first light sensing element, a second light sensing element and an image capturing element connected to the control circuit. Wherein, the liquid crystal display is arranged on a rearview mirror; the first light sensing element and the second light sensing element are used for sensing the light sources in the front and rear of the rearview mirror; the image capturing element is used for capturing the image behind the car to display the image on the LCD monitor. When encountering strong light behind the car at night, the control circuit switches the parameters of the image capture device according to the detection information of the first light sensor and the second light sensor, and outputs the synchronous output to the liquid crystal display to dim, so as to To reduce the impact of strong light on the driver's sight and discomfort, and after the rear strong light is removed, the control circuit switches the parameters of the image capture device to restore the function of the rearview mirror.

Description

Anti-glare structure of LCD electronic rearview mirror

This creation is related to an anti-glare structure of a liquid crystal electronic rearview mirror, especially a kind of darkening of the rearview mirror when encountering strong light behind the car at night, so as to reduce the impact of the strong light on the driver's sight and discomfort. The anti-glare structure of the LCD electronic rearview mirror that restores the function of the rearview mirror after the light is removed.

Press; Generally, when driving at night, the driver is most afraid that the headlight angle of the vehicle behind is too high, or the high beam is used carelessly, resulting in strong light shining on the rearview mirror, making the rearview mirror quite dazzling, This phenomenon not only causes eye discomfort, but also affects driving safety. Therefore, anti-dazzle rearview mirrors are born in response. Generally, the most common "anti-dazzle rearview mirrors" on the market are divided into "manual" and "automatic". The lever is used to adjust the angle of the inner mirror surface with this lever. That is, just move the lever up to be the normal mode, and vice versa to be the anti-glare mode.

The structure of the "automatic anti-glare rear-view mirror" is shown in FIG. 1 . A control circuit 1 is connected with a first light source sensing element 11 and a second light source sensing element 12 at the front and the rear. When the second light source senses When the light behind the vehicle detected by the component 12 is stronger than the light detected by the first light source sensing component 11 in front, the control circuit 1 will automatically determine that it is being projected by strong light, and then actively increase the output voltage to make the lens 13 shine. The chemical gel changes from a normal translucent state to a dark dark green. The angle of the liquid crystal molecules is changed by an applied voltage, the amount of light penetration is controlled, and the specular reflectance is changed to turn into a dark gel, which can effectively weaken the light reflectivity to achieve Anti-glare effect. This kind of "automatic anti-glare rearview mirror" is often blocked by passengers or headrests to the rear view, which affects the light detection and relatively affects the anti-glare function, which is also a disadvantage of "automatic anti-glare rearview mirror".

Yes, a liquid crystal electronic rearview mirror has been successfully developed. The liquid crystal electronic rearview mirror is displayed on the liquid crystal display by using a photographic lens, and the viewpoint is moved to the outside of the rear of the vehicle to avoid the rear view of the original rearview mirror due to passengers or headrests. Although it can improve the shortcomings of the above-mentioned "automatic anti-glare rearview mirror", the existing LCD electronic rearview mirror can only display the image captured by the camera lens on the LCD monitor, and has no anti-glare function. . In view of this, the applicant, after continuous research and experimentation, came up with the design of an anti-glare structure for the electronic liquid crystal rearview mirror. When encountering strong light behind the vehicle at night, the liquid crystal electronic rearview mirror can be dimmed to reduce the strong light. Affect the driver's vision and discomfort.

The main purpose of this creation is to provide an anti-glare structure for liquid crystal electronic rearview mirror. When encountering strong light behind the car at night, the parameters of the image capture device can be switched to darken the rearview mirror, so as to reduce the impact of strong light on driving. People's sight and discomfort, and the original function of the rearview mirror is restored by switching the parameters after the rear strong light is removed.

The aforementioned anti-glare structure of the liquid crystal electronic rearview mirror includes a control circuit, and a liquid crystal display, a first light-sensing element, a second light-sensing element, and an image capturing element connected to the control circuit. Wherein, the liquid crystal display is arranged on a rearview mirror; the first light sensing element and the second light sensing element are used for sensing the light sources in the front and rear of the rearview mirror; the image capturing element is used for capturing the image behind the car to display the image on the LCD monitor. When encountering strong light behind the car at night, the control circuit switches the parameters of the image capture device according to the detection information of the first light sensor and the second light sensor, and outputs the synchronous output to the liquid crystal display to dim, so as to To reduce the impact of strong light on the driver's sight and discomfort, and after the rear strong light is removed, the control circuit switches the parameters of the image capture device to restore the function of the rearview mirror.

In the anti-glare structure of the aforementioned liquid crystal electronic rearview mirror, the image capturing element is one or more photographic lenses.

In the anti-glare structure of the liquid crystal electronic rear-view mirror, the first light-sensing element and the second light-sensing element can be installed in the front and rear of the rear-view mirror, or in the front and rear of the rear-view mirror that can be sensed The location of the light source.

Please refer to Figure 2, which is a block diagram of the structure of this creation. As shown in the figure, the present invention includes a control circuit 2 , and a liquid crystal display 21 , a first light sensing element 22 , a second light sensing element 23 , and an image capturing element 24 connected to the control circuit 2 . Wherein, the liquid crystal display 21 is installed on a rearview mirror 3 ; in a preferred embodiment, the first light sensing element 22 and the second light sensing element 23 can be installed on the front and rear of the rearview mirror 3 , or set at an appropriate position that can sense the front and rear light sources of the rearview mirror 3, so as to sense the light sources in the front and rear of the rearview mirror 3, and transmit the light source information to the control circuit.

The image capturing element 24 can be installed at a proper position at the rear of the vehicle for capturing the image behind the vehicle and displaying the image on the LCD 21 for the driver to observe the dynamics of the vehicle behind from the rearview mirror 3 . In this embodiment, the image capturing element 24 is one or more than one photographic lens.

The anti-glare structure of the liquid crystal electronic rearview mirror is formed by the combination of the aforementioned components. When encountering strong light behind the vehicle at night, the control circuit 2 can switch the parameters of the image capturing element 24 according to the detection information of the first light sensing element 22 and the second light sensing element 23, and output to the liquid crystal display synchronously. 21 is dimmed to reduce the impact of strong light on the driver's sight and discomfort, and after the rear strong light is removed, the control circuit 2 switches the parameters of the image capture element 24 to restore the function of the rearview mirror 3, so that the LCD electronic Anti-glare effect of rear view mirror.

Please refer to FIG. 3 , which is an assembly example diagram of the present invention. As shown in the figure, in the preferred embodiment of the present invention, the image capturing element 24 is installed at an appropriate position behind the vehicle 4 for capturing and transmitting the rear image to the rearview mirror 3 above the driver's seat. In this way, the viewpoint is moved to the outside of the rear of the vehicle 4 to avoid the original rearview mirror 3 being blocked by the passenger or the headrest. security.

Please refer to Figure 4, which is a flow chart of the action of this creation. Please cooperate with Figure 2. As shown in the figure, when driving at night, under normal conditions, the light irradiated by the vehicle behind is the normal intensity of the headlight, and the second light source sensor 12 detects the light behind the vehicle. , the light is not stronger than the light detected by the first light source sensing element 11 in front, and the control circuit 2 controls the liquid crystal display 21 to maintain normal image display. When the second light source sensing element 12 detects that the light behind the vehicle is stronger than the light detected by the first light source sensing element 11 in front, the control circuit 2 will switch the image capturing element 24 according to the detection information. parameters, and synchronously output a voltage to the conductive layer of the liquid crystal display 21, this voltage will change the color of the electro-hydraulic. When the rear strong light is removed, the control circuit 2 switches the parameters of the image capture element 24 according to the detection information to restore the function of the rearview mirror 3, thereby achieving the anti-glare effect of the electronic rearview mirror. And this creation system can be applied to all virtual image display systems such as electronic rearview mirrors, vehicle side blind spot display and so on.

The foregoing examples are only to illustrate the preferred implementations of the present creation, rather than limiting the scope of the present creation. All modifications and changes are made without losing the essence of the present creation, nor deviating from the spirit of the present creation.

To sum up, this creation uses the liquid crystal display, the light sensor and the image capture element connected to the control circuit to form the anti-glare structure of the liquid crystal electronic rearview mirror. When encountering strong light behind the car at night, you can switch the parameters of the image capture device to dim the rearview mirror to reduce the impact of the strong light on the driver's sight and discomfort, and switch the parameters to restore the rearview mirror after the rear strong light is removed. original function. It is a practical design, and it is a creation of novelty. I should file a patent application in accordance with the law, and I pray that the bureau will review it and grant the patent as soon as possible.

1: Control circuit 11: The first light source sensor 12: The second light source sensor 13: Lenses 2: Control circuit 21: LCD display 22: The first light sensor 23: The second light sensor 24: Image capture 3: Rearview mirror 4: Vehicles

FIG. 1 is a block diagram of the structure of a conventional automatic anti-glare rearview mirror. Figure 2 is a block diagram of the structure of this creation. Figure 3 is a diagram of an assembly example of this creation. Figure 4 is a flow chart of the actions of this creation.

2: Control circuit

21: LCD display

22: The first light sensor

23: The second light sensor

24: Image capture

3: Rearview mirror

Claims (3)

An anti-glare structure for a liquid crystal electronic rearview mirror comprises a control circuit, and a liquid crystal display, a first light sensing element, a second light sensing element and an image capturing element connected to the control circuit, wherein the liquid crystal display is a set on a rearview mirror; the image capturing element is used for capturing the image behind the car and displaying the image on the liquid crystal display; the first light sensing element and the second light sensing element are used for sensing the front of the rearview mirror , the rear light source, and transmit the light source information to the control circuit; so that when there is strong light behind the car at night, the control circuit switches according to the detection information of the first light sensor and the second light sensor. The parameters of the image capture device are simultaneously output to the liquid crystal display to dim, so as to reduce the impact of strong light on the driver's sight and discomfort, and after the rear strong light is removed, the control circuit switches the parameters of the image capture device. Restore the function of the rearview mirror. The anti-glare structure of a liquid crystal electronic rearview mirror as claimed in claim 1, wherein the first light sensing element and the second light sensing element can be installed in the front and rear of the rearview mirror, or in The position of the light source in front and behind the rearview mirror can be sensed. The anti-glare structure of a liquid crystal electronic rearview mirror according to claim 1, wherein the image capturing element is one or more than one photographic lens.

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