Windshield glass and vehicle with rain and fog amount detection function and electronic shielding function

Abstract

The present invention provides a windshield and a car with rain and fog amount detection functions and electronic shielding functions, including an outer glass plate and an inner glass plate, at least a first transparent conductive layer for rain amount sensing and a second transparent conductive layer for fog amount sensing are provided between the two glass plates, the windshield includes an electronic sunshade area, a rain amount sensing area and a fog amount sensing area; a liquid crystal conductive layer is provided between the two transparent conductive layers corresponding to the electronic sunshade area, at least three independent rain amount electrodes are provided in the area corresponding to the rain amount sensing area, at least two independent fog amount electrodes are provided in the area corresponding to the fog amount sensing area on the conductive layer, and a plurality of mutually insulated conductive areas or a whole conductive area are provided in the area corresponding to the electronic sunshade area on the conductive layer; an ambient light sensor is provided on the front windshield or the instrument panel. The present invention reduces costs by sharing the same conductive layer with the sensing electrodes of the capacitive touch sensor.

Description

Technical Field

[0001] The invention relates to glass, in particular to a windshield with rain and fog amount detection functions and electronic shielding functions and a car containing the windshield. Background Art

[0002] The conventional rain and fog sensor for detecting the amount of rain and fog on the windshield of a car is arranged inside the windshield. Although this arrangement can measure the amount of rain and fog on the windshield, this arrangement has the following defects:

[0003] 1. The electrodes of traditional rain and fog sensors are made of opaque materials, so the electrodes of rain and fog sensors are required to be set at a certain position on the windshield, and cannot be set at any position on the windshield. This setting method will cause the amount of fog and rain measured by the rain and fog sensor to be inaccurate, because the amount of rain and fog is discretely distributed on the windshield, so the rain and fog sensor set at a certain position of the windshield is likely to be unable to detect the rain and fog on the windshield in time, so that the amount of rain and fog detected by the traditional rain and fog sensor is inaccurate, and ultimately the wiper system and defogger system on the car cannot operate in time.

[0004] 2. The traditional rain and fog sensor requires a huge space requirement, and the traditional setting method of setting both electrodes of the fog detection capacitor and the rain detection capacitor on the glass will affect the aesthetics of the windshield and cannot meet the visual requirements of users.

[0005] In order to solve the above problems, the invention patent with application number 201780003059.8 discloses a composite glass panel that separates an inner chamber from an external environment, which includes an inner glass panel, an outer glass panel having an inner surface, and an intermediate layer, which joins the inner surface of the outer glass panel face to face with the outer surface of the inner glass panel, and a capacitive sensor for detecting moisture having at least one capacitor, which is connected to a sensor electronic device configured to detect a capacitance change of the capacitor, wherein the capacitor has at least two electrodes formed by a transparent conductive coating and capacitively coupled.

[0006] This patent overcomes the above-mentioned defects of the traditional rain and fog sensor by setting a transparent conductive layer between two glass plates and setting electrodes of the capacitive sensor on the transparent conductive layer. However, this patent still has the following defects:

[0007] When the above-mentioned capacitive sensor detects the amount of rain outside the vehicle, the fog inside the vehicle will interfere with the capacitive sensor, and the temperature and electromagnetic changes outside the vehicle will also interfere with the capacitive sensor, resulting in the above-mentioned capacitive sensor being unable to accurately detect the amount of rain outside the vehicle, and further resulting in the capacitive sensor being unable to feed back accurate rain signals to the controller that controls the wiper action to control the wiper system to perform corresponding actions; at the same time, when the above-mentioned capacitive sensor detects the amount of fog inside the vehicle, the rain outside the vehicle, the temperature inside the vehicle, electromagnetic changes, etc. will also interfere with the capacitive sensor, resulting in the above-mentioned capacitive sensor being unable to accurately detect the amount of fog, and further resulting in the above-mentioned capacitive sensor being unable to feed back accurate fog signals to the controller that controls the air-conditioning controller to control the air-conditioning defog system to perform corresponding actions.

[0008] Sun visors are common devices on cars. Their function is to block sunlight so that the light cannot directly shine into the driver's field of vision, avoiding temporary visual blurring caused by glaring sunlight and reducing the incidence of traffic accidents. In addition, sun visors can reduce the heat inside the car in summer, and because they block the sunlight, they can also prevent the leather seats and dashboard from being damaged by ultraviolet rays. At the same time, car sun visors can block people's line of sight to increase privacy and increase the safety factor of property in the car.

[0009] Usually the sun visor on the car needs to be opened manually, but manual operation can easily distract the driver while driving the vehicle, which can easily cause traffic accidents.

[0010] Up to now, the design of installing a sun visor in a car has been proposed by many people. For example, the utility model application No. 201120494127.5 in China discloses a sun visor which is composed of a sun visor body and a translucent shading plate. The sun visor body is provided with a storage portion and an opening portion which is narrower than the storage portion. The shading range of the sun visor can be expanded by adjusting the unfolded area of ​​the translucent shading plate in the storage portion.

[0011] The utility model with Chinese application number 201210273779.5 discloses a car sun visor, including a sun visor body and a sun visor bracket, and also including a sun visor clip and a clip cover. The sun visor body is an integral injection molded part. The sun visor body is provided with an insertion hole for installing the sun visor bracket and a clip groove for installing the clip. The insertion hole is located below the clip groove and communicated with the clip groove. The clip is installed in the clip groove, the clip cover covers the clip, and the sun visor bracket is installed in the insertion hole and connected to the clip. The utility model simplifies the structure of the sun visor to the maximum extent, meets the requirements of blocking sunlight and meeting the requirements of automobile collision, and also reduces the weight of the body.

[0012] The utility model patent with Chinese application number 201120023647.8 discloses a sun visor, including a sun visor hinged on a vehicle roof through a rotating arm provided on the vehicle roof, the sun visor is provided with a lighting trigger circuit, and two trigger micro switches are connected in series in sequence on the lighting trigger circuit, one is a micro switch A that is turned on by the mirror cover, and the other is a micro switch B that is turned on by the sun visor rotating around the rotating arm. The utility model can effectively save the consumption of vehicle power supply; and has stable actuation performance and high control accuracy.

[0013] However, the sun visors in the above-mentioned utility models all require manual operation by the driver. During driving, the driver needs to manually flip down the sun visor if encountering strong light, which can easily lead to inattention while driving, thus causing traffic accidents.

[0014] The Chinese application number CN201320174234.9 discloses an electronic sun visor for a vehicle and a vehicle equipped with the electronic sun visor, which includes a photosensitive device, a main controller and a sun visor body. The photosensitive device receives a sunlight intensity signal, converts the light intensity signal into an electrical signal, and transmits it to the main controller through a wire. The main controller analyzes the electrical signal and outputs the processed electrical signal to the sun visor body to control its brightness.

[0015] The above patent cannot realize the opening and closing of the electronic sun visor controlled by gestures, and it is even more unable to realize the extension of the electronic sun visor controlled by gestures.

[0016] Therefore, it is very necessary to develop a glass that can overcome the mutual interference between the rain sensor and the fog sensor and at the same time eliminate the interference of external temperature and electromagnetic changes. Summary of the invention

[0017] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a windshield with rain and fog amount detection functions and electronic masking functions.

[0018] The windshield glass with rain and fog amount detection function and electronic masking function of the present invention has the following technical solutions:

[0019] A windshield with rain and fog amount detection functions and electronic shielding functions, comprising an outer glass plate and an inner glass plate, wherein at least a first transparent conductive layer for rain amount sensing and a second transparent conductive layer for fog amount sensing are arranged between the outer glass plate and the inner glass plate; the windshield comprises an electronic sunshade area, a rain amount sensing area and a fog amount sensing area, a liquid crystal layer is arranged between the two transparent conductive layers corresponding to the electronic sunshade area; at least three transparent rain amount detection electrodes are arranged in an area corresponding to the rain amount sensing area on the first transparent conductive layer, the transparent rain amount detection electrodes form a rain amount capacitance sensor, a first transparent electrode is arranged in an area corresponding to the fog amount sensing area on the first transparent conductive layer, the first transparent electrode serves as a rain amount shielding layer in the detection area of ​​the fog amount capacitance sensor, and the first transparent electrode is arranged in an area corresponding to the fog amount sensing area. A whole conductive area is arranged in the area corresponding to the electronic shading area on the transparent conductive layer, and the whole conductive area serves as a reused electrode of the common driving electrode of the liquid crystal and the shielding electrode of the capacitive touch sensor; at least two independent transparent fog detection electrodes are arranged in the area corresponding to the fog sensing area on the second transparent conductive layer, and the transparent fog detection electrodes form a fog capacitance sensor; a second transparent electrode is arranged in the area corresponding to the rain sensing area on the second transparent conductive layer, and the second transparent electrode serves as a fog shielding layer of the detection area of ​​the rain capacitance sensor; a plurality of mutually insulated first conductive areas are arranged in the area corresponding to the electronic shading area on the second transparent conductive layer, and the plurality of mutually insulated first conductive areas serve as a reused electrode of the partitioned driving electrode of the liquid crystal and the sensing electrode of the capacitive touch sensor.

[0020] Among them, a third transparent conductive layer is also arranged between the outer glass plate and the inner glass plate, and the third transparent conductive layer is arranged between the first transparent conductive layer and the outer glass plate; a third transparent electrode is arranged on the third transparent conductive layer corresponding to the lead arrangement area of ​​the rain sensor, and the third transparent electrode serves as a rainfall shielding layer in the lead arrangement area of ​​the rain sensor.

[0021] Among them, a fourth transparent conductive layer is also arranged between the outer glass plate and the inner glass plate, and the fourth transparent conductive layer is arranged between the second transparent conductive layer and the inner glass plate; a plurality of mutually insulated second conductive areas are arranged in the area corresponding to the electronic shading area on the fourth transparent conductive layer, and the plurality of mutually insulated second conductive areas serve as sensing electrodes of the capacitive touch sensor.

[0022] Among them, the fog shielding layer of the detection area of ​​the rain capacitance sensor arranged on the second transparent conductive layer completely covers the electrode lead area of ​​the rain sensor arranged on the first transparent conductive layer, and the rain shielding layer of the detection area of ​​the fog capacitance sensor arranged on the first transparent conductive layer completely covers the electrode lead area of ​​the fog sensor arranged on the second transparent conductive layer.

[0023] The rainfall shielding layer in the lead arrangement area of ​​the rainfall sensor disposed on the third transparent conductive layer completely covers the electrode lead area of ​​the rainfall sensor disposed on the first transparent conductive layer.

[0024] Among them, the rainfall shielding layer in the detection area of ​​the fog capacitance sensor is grounded through an analog switch or connected to the excitation signal of the fog sensor to achieve grounding shielding or equipotential shielding, and the rainfall shielding layer in the detection area of ​​the rain capacitance sensor is grounded through an analog switch or connected to the excitation signal of the rain sensor to achieve grounding shielding or equipotential shielding.

[0025] The rainfall shielding layer in the lead arrangement area of ​​the rainfall sensor is grounded through an analog switch or connected to an excitation signal of the rainfall sensor to achieve grounding shielding or equipotential shielding.

[0026] Wherein, a reversing switch is provided in the circuit, and the liquid crystal and the capacitive touch sensor are periodically and time-dividedly connected through the reversing switch.

[0027] The driving signal of the liquid crystal and the excitation signal of the capacitive touch sensor have different frequencies and / or amplitudes.

[0028] The implementation of the present invention includes the following technical effects:

[0029] 1. The present invention adopts transparent electrodes, so that the rain sensor, fog sensor, rain shielding layer and fog shielding layer do not block the driver's sight, and do not hinder the installation of other equipment on the windshield, such as cameras, radars, etc.

[0030] 2. In the present invention, the areas of the rain sensor and the fog sensor inductive regions are not limited, thereby improving the performance of the rain sensor and the fog sensor. In particular, since the temperature gradient distribution of the windshield, fogging starts from the four sides of the windshield. The present invention can arrange the electrodes of the defogger sensor in the defogger area around the glass to improve the sensitivity of the defogger sensor.

[0031] 3. The present invention arranges electrodes of a rain sensor on a first transparent conductive layer and a fog shielding layer on a second transparent conductive layer, so that the electric field lines of the rain sensor arranged on the first transparent conductive layer can diffuse to the outside of the outer glass plate to detect the amount of rain outside the vehicle, while the fog shielding layer arranged on the second transparent conductive layer prevents the electric field lines of the rain sensor from diffusing to the outside of the inner glass plate, thereby preventing fogging inside the vehicle or indoors from affecting the rain sensor; two electrodes of the fog sensor are arranged on the second transparent conductive layer and a rain shielding layer is arranged on the first transparent conductive layer, so that the electric field lines of the fog sensor arranged on the second transparent conductive layer can diffuse to the outside of the inner glass plate to detect the amount of fog inside the vehicle, while the rain shielding layer arranged on the first transparent conductive layer prevents the electric field lines of the fog sensor from diffusing to the outside of the outer glass plate, thereby preventing rain outside the vehicle from affecting the fog sensor.

[0032] 4. By setting a rain shielding layer on the third transparent conductive layer in an area corresponding to the rain sensing area, setting a rain shielding layer on the third transparent conductive layer in an area corresponding to the lead arrangement of the rain sensor, and setting a fog shielding layer on the first transparent conductive layer in an area corresponding to the mist arrangement, the electrode leads of the rain sensor and the fog sensor are sandwiched between the fog shielding layer and the rain shielding layer, thereby preventing rainwater that falls into and remains in the electrode lead arrangement area from interfering with the rain sensor and the fog sensor.

[0033] 5. By providing multiple mutually insulated conductive areas on at least one transparent conductive layer corresponding to the electronic sun visor area of ​​the front windshield, adjacent mutually insulated conductive areas form sensing electrodes of a capacitive touch sensor, thereby forming multiple capacitive touch sensors. By detecting whether the capacitance values ​​of the multiple capacitive touch sensors change and the change order, it can be determined whether it is necessary to control the color-changing glass to change color and the color-changing area and color-changing direction. In addition, the present invention can achieve control of the electronic sun visor in the following two ways: the first is a manual control method, that is, using a gesture to make a virtual pull-down action to control the electronic sun visor area to become a non-transparent state, and using repeated pull-down gestures to make the electronic sun visor area extend downward step by step to adjust the appropriate shading area, and using a gesture to make a virtual pull-up action to control the electronic sun visor area to become a transparent state; the second is an automatic control method, by providing an ambient light sensor that can sense the intensity and angle of incident light on the front windshield or the instrument panel, so as to automatically control the electronic sun visor according to the intensity and angle of the incident light. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The present invention is a windshield with rain and fog detection function and electronic masking function.

[0035] Figure 2aThe windshield glass of the present invention has rain and fog amount detection function and electronic shielding function, and comprises two transparent conductive layers.

[0036] Figure 2b For the present invention Figure 2a Schematic diagram of electrode distribution on the first transparent conductive layer.

[0037] Figure 2c For the present invention Figure 2a Schematic diagram of electrode distribution on the second transparent conductive layer.

[0038] Figure 3a The windshield glass of the present invention has rain and fog amount detection function and electronic shielding function, and comprises three transparent conductive layers.

[0039] Figure 3b For the present invention Figure 3a Schematic diagram of electrode distribution on the first transparent conductive layer.

[0040] Figure 3c For the present invention Figure 3a Schematic diagram of electrode distribution on the second transparent conductive layer.

[0041] Figure 3d For the present invention Figure 3a Schematic diagram of electrode distribution on the third transparent conductive layer.

[0042] Figure 4a The windshield glass of the present invention has rain and fog amount detection functions and electronic shielding functions, and comprises four transparent conductive layers.

[0043] Figure 4b For the present invention Figure 4a Schematic diagram of electrode distribution on the first transparent conductive layer.

[0044] Figure 4c For the present invention Figure 4a Schematic diagram of electrode distribution on the second transparent conductive layer.

[0045] Figure 4d For the present invention Figure 4a Schematic diagram of electrode distribution on the third transparent conductive layer.

[0046] Figure 4e For the present invention Figure 4a Schematic diagram of electrode distribution on the fourth transparent conductive layer.

[0047] Figure 5 The present invention is a circuit diagram of a plurality of mutually insulated conductive areas of a windshield having rain and fog amount detection functions and electronic masking functions.

[0048] Figure 6The present invention is an electrode arrangement diagram of a windshield having rain and fog amount detection functions and electronic masking functions.

[0049] Figure 7 The present invention is a circuit diagram of simultaneously applying a liquid crystal control signal and a capacitor excitation signal to a windshield having rain and fog amount detection functions and electronic masking functions.

[0050] Figure 8 The present invention is a circuit diagram of time-sharing application of a liquid crystal control signal and a capacitor excitation signal to a windshield having rain and fog amount detection functions and electronic masking functions. DETAILED DESCRIPTION

[0051] The present invention will be described in detail below in conjunction with embodiments and drawings. It should be pointed out that the described embodiments are only intended to facilitate the understanding of the present invention and do not have any limiting effect on the present invention.

[0052] The directions described in this application, such as up, down, left, and right, are used for the convenience of describing with reference to the accompanying drawings and do not constitute a limitation on the scope of protection.

[0053] like Figure 1As shown, the present invention provides a windshield with rain and fog detection functions and electronic concealing functions, including an outer glass plate and an inner glass plate, at least a first transparent conductive layer for rain sensing and a second transparent conductive layer for fog sensing are arranged between the outer glass plate and the inner glass plate, the windshield includes an electronic shading area A, a rain sensing area B, and a fog sensing area C; a liquid crystal layer 17 is arranged between the two transparent conductive layers corresponding to the electronic shading area A, at least three independent rain electrodes are arranged in the area corresponding to the rain sensing area B on the conductive layer, and the rain electrodes form a rain capacitance sensor, at least two independent fog electrodes are arranged in the area corresponding to the fog sensing area C on the conductive layer, and the fog electrodes form a fog capacitance sensor, and a plurality of mutually insulated conductive areas or a whole conductive area are arranged in the area corresponding to the electronic shading area A on the conductive layer; an ambient light sensor is arranged on the front windshield or the instrument panel. The present invention adopts transparent electrodes, so that the rain sensor, fog sensor, rain shielding layer and fog shielding layer do not block the driver's line of sight, and do not hinder the installation of other equipment on the windshield, such as cameras, radars, etc. The areas of the rain sensor and fog sensor inductive regions are not limited, thereby improving the performance of the rain sensor and the fog sensor. In particular, due to the temperature gradient distribution of the windshield, fogging starts from the four sides of the windshield. The present invention can arrange the electrodes of the defogger sensor in the defogger area around the glass to improve the sensitivity of the defogger sensor; by providing a plurality of mutually insulated conductive areas on at least one transparent conductive layer corresponding to the electronic sun visor area of ​​the front windshield, adjacent mutually insulated conductive areas form sensing electrodes of the capacitive touch sensor, thereby forming a plurality of capacitive touch sensors, and detecting whether the capacitance values ​​of the plurality of capacitive touch sensors have changed and the changes. By changing the order, it can be determined whether it is necessary to control the photochromic glass to change color, the color change area and the color change direction; and, in the present invention, the control of the electronic sun visor can be achieved in the following two ways: the first is a manual control method, that is, a virtual pull-down action is used with a hand gesture to control the electronic sun visor area to become a non-transparent state, and repeated pull-down gestures can be used to extend the electronic sun visor area downward step by step to adjust the appropriate shading area, and a virtual pull-up action is used with a hand gesture to control the electronic sun visor area to become a transparent state; the second is an automatic control method, by setting an ambient light sensor that can sense the intensity and angle of incident light on the front windshield or the instrument panel, the electronic sun visor can be automatically controlled according to the intensity and angle of the incident light.

[0054] Preferably, if Figure 1 , 2a-2c, 3a-3c, 4a-4c, a first transparent conductive layer 3 for rain sensing and a second transparent conductive layer 4 for fog sensing are arranged between the outer glass plate 1 and the inner glass plate 2; the windshield includes an electronic shading area, a rain sensing area and a fog sensing area; at least three transparent rain detection electrodes 6 are arranged in the area corresponding to the rain sensing area A on the first transparent conductive layer 3, and the transparent rain detection electrodes 6 form a rain capacitance sensor; a first transparent electrode 8 is arranged in the area corresponding to the fog sensing area B on the first transparent conductive layer 3, and the first transparent electrode 8 serves as a rain shielding layer in the detection area of ​​the fog capacitance sensor; a whole conductive area 11 is arranged in the area corresponding to the electronic shading area C on the first transparent conductive layer 3, and the The entire conductive area 11 serves as a reused electrode of the common driving electrode of the liquid crystal and the shielding electrode of the capacitive touch sensor; at least two independent transparent fog detection electrodes 7 are arranged in the area corresponding to the fog sensing area B on the second transparent conductive layer 4, and the transparent fog detection electrode 7 forms a fog capacitance sensor; a second transparent electrode 9 is arranged in the area corresponding to the rain sensing area A on the second transparent conductive layer 4, and the second transparent electrode 9 serves as a fog shielding layer of the detection area of ​​the rain capacitance sensor; a plurality of mutually insulated first conductive areas 14 are arranged in the area corresponding to the electronic shading area C on the second transparent conductive layer 4, and the plurality of mutually insulated first conductive areas 14 serve as a reused electrode of the partitioned driving electrode of the liquid crystal and the sensing electrode of the capacitive touch sensor. In this embodiment, the electrodes of the rain sensor are arranged on the first transparent conductive layer, and the fog shielding layer is arranged on the second transparent conductive layer, so that the electric field lines of the rain sensor arranged on the first transparent conductive layer can be diffused to the outside of the outer glass plate to detect the rainfall outside the vehicle, and the fog shielding layer arranged on the second transparent conductive layer prevents the electric field lines of the rain sensor from being diffused to the outside of the inner glass plate, thereby preventing the fogging inside the vehicle or indoors from affecting the rain sensor; by arranging two electrodes of the fog sensor on the second transparent conductive layer and arranging the rain shielding layer on the first transparent conductive layer, the electric field lines of the fog sensor arranged on the second transparent conductive layer can be diffused The rain shielding layer arranged on the first transparent conductive layer prevents the electric field lines of the fog sensor from diffusing to the outside of the outer glass plate, thereby preventing the rain outside the car from affecting the fog sensor. A whole conductive area is arranged on the conductive layer close to the outer glass plate, and the common driving electrode of the liquid crystal and the shielding electrode of the capacitive touch sensor reuse the whole conductive area. A plurality of mutually insulated conductive areas are arranged on the conductive layer close to the inner glass plate, and the partitioned driving electrodes of the liquid crystal and the sensing electrodes of the capacitive touch sensor reuse the plurality of mutually insulated conductive areas. The structure has low cost and can realize unilateral control of the electronic sun visor.

[0055] like Figure 3a ,3d As shown, a third transparent conductive layer 5 is also arranged between the outer glass plate 1 and the inner glass plate 2, and the third transparent conductive layer 5 is arranged between the first transparent conductive layer 3 and the outer glass plate 1; a third transparent electrode 10 is arranged on the third transparent conductive layer 5 corresponding to the lead arrangement area of ​​the rain sensor, and the third transparent electrode 10 serves as a rain shielding layer for the lead arrangement area of ​​the rain sensor. In this embodiment, a third transparent electrode is arranged on the third transparent conductive layer corresponding to the lead arrangement area of ​​the rain sensor, and the third transparent electrode serves as a rain shielding layer for the lead arrangement area of ​​the rain sensor, thereby avoiding the interference of rainwater falling into and remaining in the electrode lead arrangement area on the rain sensor; a whole conductive area is arranged on the conductive layer close to the outer glass plate, and the common driving electrode of the liquid crystal and the shielding electrode of the capacitive touch sensor reuse the whole conductive area, and a plurality of mutually insulated conductive areas are arranged on the conductive layer close to the inner glass plate, and the partitioned driving electrode of the liquid crystal and the sensing electrode of the capacitive touch sensor reuse the plurality of mutually insulated conductive areas. The structure has low cost and can realize unilateral control of the electronic sunshade.

[0056] like Figure 4a , 4e As shown, a fourth transparent conductive layer 15 is also provided between the outer glass plate 1 and the inner glass plate 2, and the fourth transparent conductive layer 15 is provided between the second transparent conductive layer 5 and the inner glass plate 2; a plurality of mutually insulated second conductive areas 16 are provided in the area corresponding to the electronic shading area C on the fourth transparent conductive layer 15, and the plurality of mutually insulated second conductive areas 16 serve as sensing electrodes of the capacitive touch sensor. In this embodiment, a third transparent electrode is provided on the third transparent conductive layer corresponding to the lead arrangement area of ​​the rain sensor, and the third transparent electrode serves as a rain shielding layer in the lead arrangement area of ​​the rain sensor, thereby preventing rainwater that falls into and remains in the electrode lead arrangement area from interfering with the rain sensor; by providing a plurality of mutually insulated conductive areas on both conductive layers close to the inner glass plate, the structure has low cost and can realize two-dimensional control of the electronic visor. Among them, the fog shielding layer in the detection area of ​​the rain capacitance sensor arranged on the second transparent conductive layer 4 completely covers the electrode of the rain sensor arranged on the first transparent conductive layer 3, and the rain shielding layer in the detection area of ​​the fog capacitance sensor arranged on the first transparent conductive layer 3 completely covers the electrode of the fog sensor arranged on the second transparent conductive layer 4.

[0057] like Figure 2a As shown, the rainfall shielding layer in the lead arrangement area of ​​the rainfall sensor disposed on the third transparent conductive layer 5 completely covers the electrode lead area of ​​the rainfall sensor disposed on the first transparent conductive layer.

[0058] like Figure 3aAs shown, a second transparent insulating layer 18 is disposed between the first transparent conductive layer 3 and the second transparent conductive layer 4 .

[0059] like Figure 4a As shown, a second transparent insulating layer 18 is disposed between the first transparent conductive layer 3 and the second transparent conductive layer 4 , and a second transparent insulating layer 19 is disposed between the second transparent conductive layer 4 and the fourth transparent conductive layer 15 .

[0060] Among them, the rainfall shielding layer in the detection area of ​​the fog capacitance sensor is grounded through an analog switch or connected to the excitation signal of the fog sensor to achieve grounding shielding or equipotential shielding, and the rainfall shielding layer in the detection area of ​​the rain capacitance sensor is grounded through an analog switch or connected to the excitation signal of the rain sensor to achieve grounding shielding or equipotential shielding.

[0061] The rainfall shielding layer in the lead arrangement area of ​​the rainfall sensor is grounded through an analog switch or connected to an excitation signal of the rainfall sensor to achieve grounding shielding or equipotential shielding.

[0062] like Figure 5 As shown, each mutually insulated conductive area can be controlled separately by analog or digital switches to achieve independent control of transparency or opacity of different areas of the liquid crystal layer.

[0063] like Figure 6 As shown, adjacent mutually insulated conductive areas form multiple pairs of capacitive touch sensor electrodes for identifying the action area and direction of touch or gesture. According to the action area and direction of touch or gesture, the corresponding area of ​​the electronic curtain can be controlled to be transparent or opaque.

[0064] like Figure 7 As shown, the driving signal of the liquid crystal and the excitation signal of the capacitive touch sensor are both applied to mutually insulated conductive areas on the transparent conductive layer. At this time, the frequency and / or amplitude of the driving signal of the liquid crystal and the excitation signal of the capacitive touch sensor are different. In this embodiment, the frequency and / or amplitude of the driving signal of the liquid crystal and the excitation signal of the capacitive touch sensor are designed differently to avoid the crosstalk problem between the driving signal of the liquid crystal and the excitation signal of the capacitive touch sensor.

[0065] like Figure 8As shown, the driving signal of the liquid crystal and the excitation signal of the capacitive touch sensor are both applied to the mutually insulated conductive areas on the transparent conductive layer. At this time, by setting a reversing switch in the circuit, the liquid crystal and the capacitive touch sensor periodically apply the liquid crystal driving signal and the capacitive excitation signal in a time-sharing manner through the reversing switch. In this embodiment, by setting a reversing switch in the circuit, the liquid crystal driving signal and the capacitive excitation signal are periodically applied in a time-sharing manner through the reversing switch to avoid the crosstalk problem between the driving signal of the liquid crystal and the excitation signal of the capacitive touch sensor.

[0066] Another aspect of the present invention also relates to a car. Since the improvement only relates to the glass on the car windshield, and other parts can adopt relatively mature technologies in the prior art, this application will not describe other parts of the car.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A windshield with rain and fog amount detection function and electronic masking function, comprising an outer glass plate and an inner glass plate, wherein at least a first transparent conductive layer for rain amount sensing and a second transparent conductive layer for fog amount sensing are arranged between the outer glass plate and the inner glass plate; characterized in that: The windshield comprises an electronic shading area, a rain sensing area and a fog sensing area, wherein a liquid crystal layer is arranged between two transparent conductive layers corresponding to the electronic shading area; at least three transparent rain detection electrodes are arranged in an area corresponding to the rain sensing area on the first transparent conductive layer, and the transparent rain detection electrodes form a rain capacitance sensor; a first transparent electrode is arranged in an area corresponding to the fog sensing area on the first transparent conductive layer, and the first transparent electrode serves as a rain shielding layer of the detection area of ​​the fog capacitance sensor; a whole conductive area is arranged in an area corresponding to the electronic shading area on the first transparent conductive layer, and the whole conductive area serves as a multiplexed electrode of a common driving electrode of the liquid crystal and a shielding electrode of the capacitive touch sensor; At least two independent transparent fog detection electrodes are arranged in the area corresponding to the fog sensing area on the second transparent conductive layer, and the transparent fog detection electrodes form a fog capacitance sensor. A second transparent electrode is arranged in the area corresponding to the rain sensing area on the second transparent conductive layer, and the second transparent electrode serves as a fog shielding layer in the detection area of ​​the rain capacitance sensor. A plurality of mutually insulated first conductive areas are arranged in the area corresponding to the electronic shading area on the second transparent conductive layer, and the plurality of mutually insulated first conductive areas serve as multiplexed electrodes for partitioned driving electrodes of the liquid crystal and sensing electrodes of the capacitive touch sensor.

2. The windshield with rain and fog detection function and electronic masking function according to claim 1, characterized in that: A third transparent conductive layer is also arranged between the outer glass plate and the inner glass plate, and the third transparent conductive layer is arranged between the first transparent conductive layer and the outer glass plate; a third transparent electrode is arranged on the third transparent conductive layer corresponding to the lead arrangement area of ​​the rain sensor, and the third transparent electrode serves as a rainfall shielding layer in the lead arrangement area of ​​the rain sensor.

3. The windshield with rain and fog detection function and electronic masking function according to claim 2, characterized in that: A fourth transparent conductive layer is also arranged between the outer glass plate and the inner glass plate, and the fourth transparent conductive layer is arranged between the second transparent conductive layer and the inner glass plate; a plurality of mutually insulated second conductive areas are arranged in the area corresponding to the electronic shading area on the fourth transparent conductive layer, and the plurality of mutually insulated second conductive areas serve as sensing electrodes of the capacitive touch sensor.

4. The windshield with rain and fog detection function and electronic masking function according to claim 1, characterized in that: The fog shielding layer in the detection area of ​​the rain capacitance sensor arranged on the second transparent conductive layer completely covers the electrode lead area of ​​the rain sensor arranged on the first transparent conductive layer, and the rain shielding layer in the detection area of ​​the fog capacitance sensor arranged on the first transparent conductive layer completely covers the electrode lead area of ​​the fog sensor arranged on the second transparent conductive layer.

5. A windshield with rain and fog detection function and electronic masking function according to claim 2 or 3, characterized in that: The rain shielding layer disposed in the lead arrangement area of ​​the rain sensor on the third transparent conductive layer completely covers the electrode lead area of ​​the rain sensor disposed on the first transparent conductive layer.

6. The windshield with rain and fog detection function and electronic masking function according to claim 4, characterized in that: The rain shielding layer in the detection area of ​​the fog capacitance sensor is grounded through an analog switch or connected to the excitation signal of the fog sensor to achieve grounding shielding or equipotential shielding. The rain shielding layer in the detection area of ​​the rain capacitance sensor is grounded through an analog switch or connected to the excitation signal of the rain sensor to achieve grounding shielding or equipotential shielding.

7. The windshield with rain and fog detection function and electronic masking function according to claim 5, characterized in that: The rainfall shielding layer in the lead arrangement area of ​​the rainfall sensor is grounded through an analog switch or connected to an excitation signal of the rainfall sensor to achieve grounding shielding or equipotential shielding.

8. A windshield with rain and fog detection function and electronic masking function according to any one of claims 1 to 4, characterized in that: The driving signal of the liquid crystal and the excitation signal of the capacitive touch sensor have different frequencies and / or amplitudes.

9. A windshield with rain and fog detection function and electronic masking function according to any one of claims 1 to 4, characterized in that: A reversing switch is provided in the circuit, and the liquid crystal and the capacitive touch sensor are periodically and time-dividedly connected through the reversing switch.

10. An automobile, characterized in that: The automobile comprises a windshield according to any one of claims 1 to 9.

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