TWI783614B - System for automatically adjusting the backlight of a dashboard - Google Patents

Abstract

A system for automatically adjusting the backlight of a dashboard includes a light sensor, a backlight source, a car dashboard, an electrochromic glass, an electrochromic system and a controller. The light sensor is provided for sensing an ambient light and transmitting a light intensity signal according to the ambient light. The car dashboard is provided for displaying car body data, vehicle travel data, or environmental parameter data. The car dashboard is connected to the backlight source. The electrochromic glass is mounted on the car dashboard. The electrochromic system is connected to the electrochromic glass and provided for receiving the light intensity signal and adjusting of the light absorption, light transmission and color of the electrochromic glass according to the light intensity signal. The controller receives the light intensity signal transmitted from the light sensor and adjusts the brightness of the backlight source according to the light intensity signal.

Description

System for automatically adjusting the backlight of the instrument panel

The invention relates to a system for adjusting the backlight of an instrument panel, in particular to a system for automatically adjusting the backlight of an instrument panel with electrochromic glass.

Press, electrochromic glass is a new type of functional glass. In recent years, electrochromic glass has been very active in the application and development of smart windows. This device consisting of basic glass and electrochromic system utilizes the light transmission (or Absorption) performance can be adjusted to achieve the purpose of adjusting the illuminance according to people's wishes. At the same time, the electrochromic system can reduce the number of buildings such as office buildings and residential buildings by selectively absorbing or reflecting external heat radiation and preventing internal heat diffusion. A large amount of energy must be expended to keep things cool in summer and warm in winter.

Scope of application: In recent years, with the shortage of energy resources, the research and development of energy-saving materials has become an important issue of widespread concern. The all-solid-state smart window (SW) with electrochromic materials as the core can dynamically adjust the output of solar energy or The input and visible spectrum can also be used as windshields and large-area displays for vehicles such as automobiles, and have broad application prospects in industrial fields such as construction, transportation, and electronics. At present, electrochromic glass has been widely used in construction, aircraft, automobile and other fields.

Generally, the instrument mirrors are made of transparent acrylic. If you ride or place them under the sun for a long time, it may cause the LCD-related materials to deteriorate and age in advance, and the display will fade. The visibility is poor, so the use of this technology can slow down the internal temperature of the instrument, and also prevent the poor visibility caused by strong light directly irradiating the LCD.

Therefore, how to solve the problems and deficiencies of the above-mentioned prior art is the subject that the related industry is eager to research and develop.

The present invention proposes a system for automatically adjusting the backlight of an instrument panel, which can prevent strong light from illuminating the liquid crystal display and protect the tolerance of electronic components.

The invention provides a system for automatically adjusting the backlight source of an instrument panel, which is used in an exterior vehicle. The system for automatically adjusting the backlight of the instrument panel includes a light sensor, a backlight, a vehicle instrument panel, electrochromic glass, an electrochromic system and a controller. The light sensor is used for sensing ambient light and transmitting a light intensity signal accordingly. The backlight is used to emit light. The vehicle instrument panel is used to display vehicle body data, vehicle driving data or environmental parameter data, wherein the vehicle instrument panel is connected to the backlight. The electrochromic glass is set and installed on the instrument panel of the vehicle. The electrochromic system is connected to the electrochromic glass, and the electrochromic system is used to receive the light intensity signal and adjust the light absorption, light transmission or color of the electrochromic glass accordingly. The controller is connected to the light sensor and the backlight. The controller receives the light intensity signal sent by the light sensor and adjusts the brightness of the backlight according to the light intensity signal.

In one embodiment of the present invention, when the light sensor transmits the light intensity signal to the electrochromic system, the electrochromic system will output the first control signal according to the conversion value of the light intensity signal and the first built-in algorithm And it is used to adjust the light absorption, light transmission or color of the electrochromic glass.

In one embodiment of the present invention, when the light sensor sends a light intensity signal to the controller, the controller will output a second control signal according to the light intensity signal and the conversion value of the second built-in algorithm to adjust the The brightness of the backlight.

In one embodiment of the present invention, the first built-in algorithm and the second built-in algorithm have a common standard to coordinate the light absorption, light transmittance or color of the electrochromic glass with the light of the backlight color or brightness.

In one embodiment of the present invention, the vehicle instrument panel is a liquid crystal display.

In one embodiment of the present invention, the performance of the electrochromic glass is adjusted through the electrochromic system to prevent the vehicle instrument panel from being irradiated by strong light and protect the durability of electronic components.

To sum up, the system for automatically adjusting the backlight of the instrument panel disclosed by the embodiment of the present invention can achieve the following effects: 1. Prevent the liquid crystal display from being illuminated by strong light; 2. Extend the life of the liquid crystal display and reduce the internal temperature of the instrument panel; and 3. To protect the tolerance of electronic parts.

In the following detailed description by means of specific embodiments, it will be easier to understand the purpose, technical content, characteristics and effects of the present invention.

100: Automatically adjust the backlight system of the instrument panel

110: light sensor

120: Backlight

130: Vehicle dashboard

140: Electrochromic glass

150:Electrochromic system

160: controller

CS1: The first control signal

CS2: The first control signal

EL: ambient illuminance

LS: light intensity signal

S210, S220, S230, S240, S250, S260: steps

The first figure is a schematic block diagram of a system for automatically adjusting the backlight of an instrument panel according to an embodiment of the present invention.

The second figure is a schematic diagram of the workflow of the system for automatically adjusting the backlight of the instrument panel according to the embodiment of the present invention.

In order to solve the problem that the existing vehicle instrument panel is illuminated by strong light, which affects the vision and destroys the internal electronic components, the inventor has done years of research and development to improve the existing products. Follow-up It will be introduced in detail how the present invention achieves the most efficient functional demands with a system for automatically adjusting the backlight of the instrument panel.

Please refer to the first figure at the same time, the first figure is a schematic block diagram of the system for automatically adjusting the backlight of the instrument panel according to the embodiment of the present invention. As shown in Figure 1, the system 100 for automatically adjusting the backlight of an instrument panel for an exterior vehicle includes a light sensor 110, a backlight 120, a vehicle instrument panel 130, an electrochromic glass 140, an electrochromic system 150 and controller 160 . The light sensor 110 is used to sense the ambient light EL and transmit a light intensity signal LS accordingly. The backlight 120 is used for emitting light. The vehicle instrument panel 130 is used to display vehicle body data, vehicle driving data or environmental parameter data, wherein the vehicle instrument panel 130 is connected to the backlight 120 and the vehicle instrument panel is a liquid crystal display (LCD, Liquid-Crystal Display). The electrochromic glass 140 is installed on the vehicle instrument panel 130 . The electrochromic system 150 is connected to the electrochromic glass 140 , and the electrochromic system 150 is used to receive the light intensity signal LS and adjust the light absorption, light transmission or color of the electrochromic glass 140 accordingly. The controller 160 is connected to the light sensor 110 and the backlight 120 , the controller 160 receives the light intensity signal LS sent by the light sensor 110 , and adjusts the brightness of the backlight 120 according to the light intensity signal LS. The controller 160 here may be a microcontroller (MCU).

Further, when an external vehicle is traveling or parked in the external environment, the light sensor 110 on the system 100 for automatically adjusting the backlight of the instrument panel will automatically detect or sense the ambient light EL (or ambient light intensity) of the external environment. ), and convert it into a corresponding light intensity signal LS according to the sensed ambient light illuminance EL (or ambient light intensity). In this embodiment, one light sensor 110 is taken as an example, but not limited to one. In one embodiment, there may be more than two light sensors to simultaneously detect or sense the external environment. Ambient illuminance EL. In another embodiment, the electrochromic system 150 itself also has a light sensor inside. Next, the light sensor 110 sends the light intensity signal LS to the electrochromic system 150 and the controller 160 . When the light sensor 110 sends the light intensity signal LS to the electrochromic system 150, the electrochromic system 150 will output the first control according to the conversion value of the light intensity signal LS and the first built-in algorithm. The signal CS1 is sent to the electrochromic glass 140 and used to adjust the light absorption, light transmission or color of the electrochromic glass 140 . That is to say, the performance of the electrochromic glass 140 is adjusted through the electrochromic system 150 to prevent the vehicle instrument panel 130 from being irradiated by strong light and protect the tolerance of electronic components. In addition, when the light sensor 110 sends the light intensity signal LS to the controller 160, the controller 160 will output the second control signal CS2 according to the conversion value of the light intensity signal LS and the second built-in algorithm to adjust the backlight The light color or brightness of the source 120.

It should be noted that the first built-in algorithm and the second built-in algorithm have a common standard to coordinate the light absorption, light transmittance or color of the electrochromic glass 140 with the light color or color of the backlight 120 brightness. That is to say, the first built-in algorithm and the second built-in algorithm are designed according to the road test or real demand of the system 100 for automatically adjusting the backlight of the instrument panel according to the embodiment of the present invention. The light brightness (or light color) and the performance of the electrochromic glass 140 are adjusted to match the harmony between human eyes and ambient light.

Please refer to the first figure and the second figure at the same time. The second figure is a schematic diagram of the workflow of the system for automatically adjusting the backlight of the instrument panel according to the embodiment of the present invention. As shown in Figure 2, when an external vehicle is driving or parked in a strong light environment (step S210), the light sensor 110 detects or senses the strong light in the environment and transmits a corresponding light intensity signal LS (step S220) . The electrochromic system 150 receives the light intensity signal LS and transmits the first control signal CS1 accordingly (step S230 ). The controller 160 receives the light intensity signal and sends a second control signal CS2 accordingly (step S240). The electrochromic glass 140 adjusts glass properties according to the first control signal CS1 (step S250 ), and the backlight source 120 adjusts light color or brightness according to the second control signal CS2 (step S260 ). Therefore, the upper cover of the instrument panel 130 of the embodiment of the present invention is the electrochromic glass 140, and according to the above-mentioned system and working mechanism, if it is ridden or placed under the sun for a long time, it will not cause the LCD-related materials to deteriorate in advance Aging will cause the display to fade, and it will not cause poor visibility. Make The system for automatically adjusting the backlight of the instrument panel according to the embodiment of the present invention can reduce the internal temperature of the instrument and prevent the problem of poor visibility caused by strong light directly irradiating the LCD.

To sum up, the system for automatically adjusting the backlight of the instrument panel disclosed by the embodiment of the present invention can achieve the following effects: 4. Prevent the liquid crystal display from being illuminated by strong light; 5. Extend the life of the liquid crystal display and reduce the internal temperature of the instrument panel; and 6. To protect the tolerance of electronic parts.

But what is described above is only an embodiment of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

100: Automatically adjust the backlight system of the instrument panel

110: light sensor

120: Backlight

130: Vehicle dashboard

140: Electrochromic glass

150:Electrochromic system

160: controller

CS1: The first control signal

CS2: The first control signal

EL: ambient illuminance

LS: light intensity signal

Claims (3)

A system for automatically adjusting the backlight of an instrument panel, which is used in an exterior vehicle, the system for automatically adjusting the backlight of the instrument panel includes: a light sensor, used to sense an ambient light intensity and transmit a light intensity signal accordingly; A backlight source for emitting light; a vehicle instrument panel for displaying a vehicle body data, a vehicle driving data or an environmental parameter data, wherein the vehicle instrument panel is connected to the backlight source; an electrochromic glass, It is installed on the instrument panel of the vehicle; an electrochromic system is connected to the electrochromic glass, and the electrochromic system is used to receive the light intensity signal and adjust the light absorption of the electrochromic glass accordingly, Light transmittance or color; and a controller connected to the light sensor and the backlight, the controller receives the light intensity signal sent by the light sensor, and adjusts the backlight according to the light intensity signal The brightness of the source, wherein when the light sensor sends the light intensity signal to the electrochromic system, the electrochromic system will output a first conversion value according to the light intensity signal and a first built-in algorithm A control signal for adjusting the light absorption, light transmission or color of the electrochromic glass, wherein when the light sensor sends the light intensity signal to the controller, the controller will compare the light intensity signal with the A conversion value of a second built-in algorithm is used to output a second control signal and used to adjust the light color or brightness of the backlight, wherein the first built-in algorithm and the second built-in algorithm have mutual relations A common standard to coordinate the light absorption, light transmission or color of the electrochromic glass with the light color or brightness of the backlight. The system for automatically adjusting the backlight of an instrument panel as described in claim 1, wherein the vehicle instrument panel is a liquid crystal display. The system for automatically adjusting the backlight of an instrument panel as described in Claim 1, wherein the performance of the electrochromic glass is adjusted through the electrochromic system to prevent the vehicle instrument panel from being illuminated by strong light and protect the durability of electronic parts. Receptivity.

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