KR101271380B1 - Variable sysmbol displaying switch unit and method for controlling the same - Google Patents

Abstract

The present invention relates to a semiconductor device comprising: a housing; A substrate disposed fixed to the housing; A light source unit disposed on the substrate and including a first wavelength light source for outputting a first wavelength light and a second wavelength light source for outputting a second wavelength light in a wavelength band different from that of the first wavelength light; An optical filter unit selectively transmitting the first wavelength light or the second wavelength light and changing an output region of light according to the operation of the light source unit; A proximity sensor electrically connected to the substrate to detect proximity of the user to the housing; And a controller electrically connected to the proximity sensor and the light source unit and receiving a proximity signal from the proximity sensor and outputting a light source control signal to the light source unit to adjust an operation of the light source unit according to whether the user is close to the housing. It provides a variable symbol display switch device having a; and a control method thereof.

Description

Variable symbol display switch device and its control method {VARIABLE SYSMBOL DISPLAYING SWITCH UNIT AND METHOD FOR CONTROLLING THE SAME}

The present invention relates to a display device, and more particularly, to a display device that increases visibility and enables clear visual recognition.

BACKGROUND ART A vehicle such as an automobile has a function as a variety of convenience means for enabling a user to provide a more stable and comfortable running state beyond a function as a moving means. Accordingly, the vehicle is provided with various convenience facilities, various switches for operating and controlling the same, and display devices thereof.

On the other hand, the number of elderly drivers is increasing as the elderly population increases. BACKGROUND ART With the development of technology, the use of electronic devices is frequently used in vehicles, and the frequency of accident issuance due to carelessness of the driver when operating such electronic devices is increasing. As such, there is an increasing demand for a configuration for accurately recognizing a driving state for a driver that is weakened by forward attention. Although information may be transmitted through an image display device such as an LCD display provided in a vehicle, there is an increasing need for a display device having a structure capable of quickly and reducing manufacturing cost of information on various devices provided in a vehicle. have.

Accordingly, an object of the present invention is to provide a variable symbol display switch device that can reduce the manufacturing cost while increasing the visibility and quick visual recognition while taking a simple structure.

The present invention for achieving the above object, a housing; A substrate disposed fixed to the housing; A light source unit disposed on the substrate and including a first wavelength light source for outputting a first wavelength light and a second wavelength light source for outputting a second wavelength light in a wavelength band different from that of the first wavelength light; An optical filter unit selectively transmitting the first wavelength light or the second wavelength light and changing an output region of light according to the operation of the light source unit; A proximity sensor electrically connected to the substrate to detect proximity of the user to the housing; And a controller electrically connected to the proximity sensor and the light source unit and receiving a proximity signal from the proximity sensor and outputting a light source control signal to the light source unit to adjust an operation of the light source unit according to whether the user is close to the housing. It provides a variable symbol display switch device having a.

In the variable symbol display switch device, the proximity sensor may include an infrared sensor.

In the variable symbol display switch device, the proximity sensor may include an ultrasonic sensor.

In the variable symbol display switch device, the optical filter unit includes: a screening filter unit disposed to face the light source unit and selectively allowing transmission of the first wavelength light or the second wavelength light and the light source unit; The screening filter unit may be disposed at the second filter unit, and the transmission filter unit may change a light output region according to the first wavelength light or the second wavelength light transmitted through the screening filter unit.

In the variable symbol display switch device, the screening filter unit includes: a light combat unit for transmitting both the first wavelength light and the second wavelength light, a selective light transmission unit allowing only the transmission of the second wavelength light, and the second filter unit; It may include a photoelectric shield for blocking both the first wavelength light and the second wavelength light.

In the variable symbol display switch device, the selective light transmitting unit may be set to have a transmittance of 10% or more with respect to light in the wavelength range of 500 nm to 800 nm.

In the variable symbol display switch device, the transmission filter unit comprises: a symbol transmission unit having at least a partly cross-projection area with the optical battle wiper and passing both the first wavelength light and the second wavelength light, and the symbol It is formed outside the transmission part, and may include a symbol expandable part whose transmittance of the first wavelength light and the second wavelength light is smaller than the symbol transmission part.

In the variable symbol display switch device, the transmittance of the symbol extendable part may be 40% to 60% of the transmittance of the symbol transmittance part.

In the variable symbol display switch device, a symbol icon for increasing daytime visibility may be formed in the symbol transmission unit.

In the variable symbol display switch device, the color of the symbol may be white.

In the variable symbol display switch device, the symbol transmission portion may have the same cross-projection area as the light combat widow.

In the variable symbol display switch device, the first wavelength light source may be a blue lamp that outputs blue light.

In the variable symbol display switch device, the second wavelength light source may be a red lamp that outputs red light.

In the variable symbol display switch device, the vehicle speed signal from the vehicle speed sensor that is electrically connected to the control unit, further comprises an illumination sensor for sensing the illumination of the exterior of the housing, the vehicle speed is mounted It may be delivered to the controller.

According to another aspect of the invention, the present invention is a housing; A substrate disposed fixed to the housing; A light source unit disposed on the substrate and including a first wavelength light source for outputting a first wavelength light and a second wavelength light source for outputting a second wavelength light in a wavelength band different from that of the first wavelength light; An optical filter unit selectively transmitting the first wavelength light or the second wavelength light and changing an output region of light according to the operation of the light source unit; A proximity sensor electrically connected to the substrate to detect proximity of the user to the housing; And a controller electrically connected to the proximity sensor and the light source unit and receiving a proximity signal from the proximity sensor and outputting a light source control signal to the light source unit to adjust an operation of the light source unit according to whether the user is close to the housing. ; A storage unit connected to the control unit and storing preset data for the control unit to determine an operation mode of the light source unit; A variable symbol display switch device electrically connected to the control unit and having an illumination sensor for sensing an illumination of the outside of the housing, wherein a vehicle speed signal from a vehicle speed sensor for detecting a speed of a vehicle on which the housing is mounted is transmitted to the control unit. Providing a step of, the control unit, the sensing step of applying an sensing control signal to at least one of the proximity sensor, the illuminance sensor and the vehicle speed sensor to receive an output signal, the control unit, the proximity sensor, the To perform a mode determination setting step of setting an operation mode in which the light source unit should be executed by comparing the at least one output signal of an illuminance sensor and the vehicle speed sensor with preset data of the storage unit, and executing the operation mode set in the mode determination step, The control unit generates a light source control signal according to the operation mode. It provides a variable symbol display switch device control method comprising the step of outputting to the light source unit.

In the variable symbol display switch device control method, the output signal detected from the proximity sensor, the illuminance sensor and the vehicle speed sensor in the sensing step is transmitted to the control unit, the preset data is illuminance for determining whether day or night A reference signal, a driving reference preset speed of the vehicle, and a proximity reference signal for determining whether the user is close to the housing, wherein the mode determination setting step includes: an illumination output signal from the illumination sensor and the illumination reference Comparing the signal with the vehicle speed output signal from the vehicle speed sensor and the driving reference preset speed when the control unit determines whether it is a night environment in the day and night setting step of determining whether it is the day or night environment, and the day and night judgment setting step. Is the vehicle speed at which the user needs attention In the caution judgment setting step of determining the step, and in the caution judgment setting step, when it is determined that the user's attention is required because the vehicle speed is higher than the driving reference preset speed, the proximity output signal and the proximity reference signal from the proximity sensor It may include a proximity determination setting step of setting a proximity mode or a non-proximity mode by determining whether the user is close to the housing by comparing with.

In the method of controlling a variable symbol display switch device, the mode execution step may include: a day mode execution step of applying an off control signal to the light source unit when it is determined that the controller is in the daytime environment setting step. .

In the method of controlling the variable symbol display switch device, the mode executing step includes: when the vehicle speed output signal is determined to be less than the driving reference preset speed in the caution judgment setting step, or when the user determines the proximity judgment setting step. If it is determined that is not close to the may include a night normal mode step of maintaining the output area of the light in a normal state.

In the method of controlling the variable symbol display switch device, the mode executing step may include: determining that the vehicle speed output signal is greater than or equal to the driving reference preset speed in the attention determination setting step, and the user approaches the housing in the proximity determination setting step. If it is determined to include, it may include a night emphasis mode step of changing the light output area to an expanded state having an area larger than the normal state.

According to another aspect of the invention, the present invention is a housing; A substrate disposed fixed to the housing; A light source unit disposed on the substrate and including a first wavelength light source for outputting a first wavelength light and a second wavelength light source for outputting a second wavelength light in a wavelength band different from that of the first wavelength light; An optical filter unit selectively transmitting the first wavelength light or the second wavelength light and changing an output region of light according to the operation of the light source unit; A proximity sensor electrically connected to the substrate to detect proximity of the user to the housing; A switching unit disposed below the optical filter unit to change a switching signal by a user's operating operation; And a light source control signal electrically connected to the proximity sensor, the light source unit and the switching unit, to receive a proximity signal from the proximity sensor, and to adjust an operation of the light source unit according to whether the user is close to the housing. And a control unit for outputting to the light source unit and outputting a switching operation signal corresponding to the switching signal from the switching unit.

In the variable symbol display switch device, the switching unit may be a capacitive touch sensor.

The variable symbol display switch device, wherein the housing includes: a housing cover and a housing body disposed to face the housing cover, wherein the housing cover is disposed to be relatively movable on the housing body, and the switching unit includes: It may include a switching movable portion disposed on the housing cover, and a switch operating portion disposed on the substrate and disposed corresponding to the switch movable portion.

The variable symbol display switch device, wherein the housing includes: a housing cover, a housing body disposed to face the housing cover, and a housing separator disposed between the housing cover and the housing body and partitioning a plane. The optical filter unit may include a plurality of output regions in which light is changed at a position corresponding to an area divided by the housing separator, and the plurality of light source units may be disposed at a position corresponding to an area divided by the housing separator. It may be arranged.

The variable symbol display switch device and the control method thereof according to the present invention having the configuration as described above has the following effects.

First, the variable symbol display switch device and the control method thereof according to the present invention allows selective transmission according to the wavelength of light, and finally, visual effects such as change in the size of the symbol, and visual visibility of a user such as a driver and rapid visual Perception can be enabled.

Second, the variable symbol display switch device and the control method thereof according to the present invention can increase the visibility and quick recognition through the selective transmission of light of a simple structure, and at the same time can significantly reduce the manufacturing cost.

Third, the variable symbol display switch device and the control method thereof according to the present invention may implement various selective output functions through various arrangements of the optical battle widow and one or more selective light transmission units.

Fourth, the variable symbol display switch device and the control method thereof according to the present invention, by appropriately controlling the variable display of the symbol through the operating state or the environment through the proximity sensor or the like to increase the visibility of the driver to prevent a reduction in driving attention You may.

Fifth, the variable symbol display switch device and the control method thereof according to the present invention, the driver's front attention is reduced through the display control of the variable symbol through the light source control suitable for the driving environment through the proximity sensor, the illumination sensor and the vehicle speed sensor. It can be minimized, it is possible to enable a quick and smooth operation through the switching unit associated with it.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1 is a schematic perspective view of a variable symbol display switch device having a unit switch according to an embodiment of the present invention.
2 is a schematic exploded perspective view of a variable symbol display switch device according to an exemplary embodiment of the present invention.
3 is a schematic partial cross-sectional view of a variable symbol display switch device according to an embodiment of the present invention.
4 is a schematic perspective view of a screening filter unit of a variable symbol display switch device according to an exemplary embodiment of the present invention.
5 and 6 are diagrams showing transmittances of wavelength bands of the screening filter unit of the variable symbol display switch device according to an exemplary embodiment of the present invention.
FIG. 7 is a schematic perspective view of a transmission filter unit of a variable symbol display switch device according to an exemplary embodiment of the present invention.
8 and 9 are diagrams showing transmittances of wavelength bands of the two-transmission filter units of the variable symbol display switch device according to the exemplary embodiment of the present invention.
10 is a schematic perspective view of a light source unit in a non-powered state of a variable symbol display switch device according to an exemplary embodiment of the present invention.
11 and 12 are a perspective view and an exploded perspective view of the ON operation state of the first wavelength light source of the light source unit for the screening filter unit of the variable symbol display switch device according to an embodiment of the present invention.
13 and 14 are a perspective view and an exploded perspective view of the on-operation state of the second wavelength light source of the light source unit to the two-transmittance filter unit of the variable symbol display switch device according to an embodiment of the present invention.
15 is a schematic partial cross-sectional view of a variable symbol display switch device according to another embodiment of the present invention.
16 is a schematic block diagram of a variable symbol display switch device according to another embodiment of the present invention.
17 to 19 are control flowcharts of a control method of a variable symbol display switch device according to another embodiment of the present invention.
20 is a schematic partial cross-sectional view of a variable symbol display switch device according to another embodiment of the present invention.
21 is a schematic partial cross-sectional view of a modification of the variable symbol display switch device according to another embodiment of the present invention.
22 is a schematic exploded perspective view of a variable symbol display switch device according to another embodiment of the present invention.

Hereinafter, a variable symbol display switch device and a control method thereof according to the present invention will be described with reference to the drawings.

1 is a schematic perspective view of a variable symbol display switch device 10 according to the present invention, and FIG. 2 is a schematic exploded perspective view of a variable symbol display switch device 10 according to the present invention.

The variable symbol display switch apparatus 10 according to an exemplary embodiment of the present invention includes a housing 100, a substrate 200, a light source unit 300, and an optical filter unit 400. The housing 100 has a housing cover 110 and a housing body 120. The housing cover 110 and the housing body 120 form an inner space to enable stable mounting of other components. Here, although the housing cover 110 and the housing body 120 is formed in a rectangular frame structure, when the housing cover 110 and the housing body 120 is mounted on a vehicle or other equipment, it may have various shapes according to design specifications. The housing cover 110 is provided with a cover window 111 through which at least a portion of the optical filter unit 400, which allows output of light generated from the light source unit 300, is exposed.

The substrate 200 is disposed in an inner space formed by the housing cover 110 and the housing body 120. The substrate 200 is illustrated as a simple printed circuit board in this embodiment, which may be formed as an integral structure for insert injection into the housing body, or may be formed as a metal substrate for smooth heat dissipation. Various modifications are possible depending on design specifications in the range of providing electrical signals.

The light source unit 300 is disposed on the substrate 200, and includes a first wavelength light source 310 and a second wavelength light source 320. The first wavelength light source 310 outputs the first wavelength light and the second wavelength. The light source 320 outputs the second wavelength light when the power is supplied, and the wavelength of the second wavelength light is set to have a wavelength band different from that of the first wavelength light. That is, the first wavelength light and the second wavelength light are composed of light of different wavelength bands. In the present embodiment, the first wavelength light source 310 is implemented as an LED for outputting blue light, and the second wavelength light source 320 is implemented as an LED for outputting red light, which is an example of a range for outputting light of different wavelength bands. Various configurations are possible in

The optical filter unit 400 includes a screening filter unit 410 and a translucent filter unit 420, wherein the screening filter unit 410 is disposed facing the light source unit 300, that is, facing the substrate 200. The transmission of the first wavelength light output from the first wavelength light source 310 and the second wavelength light output from the second wavelength light source 320 is selectively allowed.

The screening filter unit 410 includes an optical battle widow 411, a selective light transmitting unit 413, and an optical electric wave blocking unit 415 as shown in FIG. 4. The light combat widow 411 transmits both the first wavelength light emitted from the first wavelength light source 310 and the second wavelength light emitted from the second wavelength light source 320. The selective light transmitting unit 413 allows only the transmission of the second wavelength light and blocks the transmission of the first wavelength light, and the photoelectric shield 415 blocks the transmission of all light of the first wavelength light and the second wavelength light. That is, the photoelectric shield 415 is disposed on one surface of the substrate 200 by blocking both the first wavelength light from the first wavelength light source 310 and the second wavelength light from the second wavelength light source 320. The light emitted from the light source 300 is blocked through the photoelectric shield 415 without being transmitted. The photoelectric shield 415 may be configured to have a transmittance of, for example, 10% or less with respect to light of most wavelength bands.

Although the selective light transmitting part 413 is described as transmitting only the second wavelength light in the present embodiment, various modifications are possible in a range that takes an alternative structure such as transmitting only the first wavelength light and blocking the second wavelength light.

5 and 6 show a diagram of light transmittance for each wavelength of light for the light combat widow 411 and the selective light transmitter 413. For the light combat widow 411, the transmittance of light of most wavelength bands is 90%. On the other hand, the selective light transmitting unit 413 has a transmittance of 10% or more with respect to light in a wavelength range of a specific region, that is, light in a wavelength range of 500 nm to 800 nm. Here, the transmittance refers to a ratio of the amount of light emitted through the incident light to the amount of light incident on each area. The selective light transmitting unit 413 according to an embodiment of the present invention exhibits a substantial transmittance with respect to the red light in the 600 to 700 nm wavelength range, while taking a structure that does not allow a large part to transmit the blue light in the 400 to 500 nm wavelength band. . In the present embodiment, the selective light transmitting part 413 has a structure arranged to surround the outer periphery of the light combat widow 411 to selectively turn on / off the first wavelength light source 310 and the second wavelength light source 320. When driving, the output region of the light passing through the screening filter unit 410 is changed. That is, when the first wavelength light source 310 is formed in an ON state, light transmission is permitted only to the light combat widow 411, but the second wavelength light source 320 is formed in an ON state. In this case, the light may be transmitted through both the light combat unit 411 and the selective light transmitting unit 413 to form a structure in which light is output, thereby forming a change in a predetermined light output region.

The translucent filter unit 420 is disposed in parallel with the light source unit 300, that is, the substrate 200 in which the light source unit 300 is disposed. The screen filter is disposed between the translucent filter unit 420 and the substrate 200. Taking the configuration in which the unit 410 is arranged, the overall arrangement order is taken in the order of the two-through lucent filter unit 420, the screening filter unit 410, and the substrate 200. The transparent filter unit 420 emits light according to the first wavelength light and / or the second wavelength light emitted from the light source 300 disposed on one surface of the substrate 200 and transmitted through the screening filter unit 410. Allow the output area to change. That is, an electrical signal is applied to the first wavelength light source 310 to form an ON state, and an electrical signal is cut off to the second wavelength light source 320 to form an OFF state to output only the first wavelength light. In this case, the first wavelength light is displayed on the two-through lucent filter unit 420 via the light combat widow 411 of the screening filter unit 410, and the electrical signal is blocked by the first wavelength light source 310 so that the first wavelength light is turned off. ) To form an ON state in which an electrical signal is applied to the second wavelength light source 320 to output only the second wavelength light, and the second wavelength light may be formed by the light fighting widow of the screening filter unit 410. 411 and the selective light transmitting part 413 are displayed on the transparent filter unit 420. In this process, when the second wavelength light source is turned on, the selective light transmitting part 413 of the screening filter part 410 is formed. The area of light transmitted to the transmission filter 420 is made by enlarging the transmission area of the light of The output region of the light is changed in preparation for the case where the first wavelength light source is turned on.

On the other hand, the translucent filter unit 420 may take a structure for improving the identification even in the daytime. That is, as shown in FIG. 7, the translucent filter unit 420 includes a symbol transmitting unit 421 and a symbol expandable unit 423, and the symbol transmitting unit 421 crosses at least a portion of the optical combat widow 411. It has a projection area and passes both the first wavelength light and the second wavelength light, and the symbol expandable part 423 is formed outside the symbol transmitting part 421. The transmittances of the first wavelength light and the second wavelength light of the symbol expandable part 423 are smaller than the transmittances of the first wavelength light and the second wavelength light of the symbol transmission part 421. In this embodiment, the transmittance of the symbol expandable part 423 has a value of 40% to 60% of the transmittance of the symbol transmittance part.

8 and 9 show a diagram showing the transmittance of the transparent filter unit 420. The symbol transmission part 421 shows a transmittance of about 90% for most of the light in the wavelength range of 100 to 900 nm in which the wavelength bands of the first wavelength light and the second wavelength light are formed, whereas the symbol expandable part 423 is translucent to the surface. 50% of the transmittance of the symbol expandable part 423 is 55% of the transmittance of the symbol transmission part 421. Take a structure with a value of. As a result, when the first wavelength light source 310 and the second wavelength light source 320 are selectively operated, a variable structure of the light output region is formed, and when the second wavelength light is output, the symbol transmission part 421 As the intensity of light transmitted through the symbol transmission unit 421 is greater than that of the symbol expandable unit 423 formed at the outside, the attentional attention effect may be notified to a user such as a driver by highlighting the eye focus effect.

In addition, a symbol icon S (refer to FIG. 3) may be arranged on the symbol transmission unit 421 so that the user may increase daytime visibility. The symbol icon S is coated with a white paint on the surface of the two-through lucent filter unit 400 to have white color, so that light transmitted through the symbol transmission unit 421 can be clearly recognized through the symbol icon S. You can do that.

On the other hand, the optical filter unit according to the present invention may take a structure for preventing the visibility decrease due to the coarseness of the light output area of the light source unit. That is, the symbol transmission part 421 of the two-transmitting filter part 420 may have a configuration having the same cross-projection area as the light combat widow 411 of the screening filter part 410. That is, the light source unit 300, which is implemented as an LED, secures a substantial straightness of the light, and when the symbol transmission unit 421 and the light combat widow 411 are projected on a plane parallel to the substrate 200, the symbol transmission unit 421 ) And the light combat widow 411 are configured to have the same projection area, so that when the first wavelength light source 310 is in an on state, the light transmitted through the light combat widow 411 projects the symbol transmission part 421 as it is. On the other hand, the possibility that the light transmitted through the optical combat widow 411 is transmitted to the symbol expandable part 423 is substantially reduced, thereby preventing the user from coarse transmission of the light transmitted through the symbol in the visual recognition process. It can also be minimized.

FIG. 10 is a schematic partial perspective view illustrating a non-operational state of the variable symbol display switch device 10 according to an embodiment of the present invention, that is, a state in which no power is applied to the light source unit 300. Here, the symbol icon S displayed on one surface of the symbol transmission part 411 is white so that a user can quickly recognize the function indicated by the symbol icon S. FIG.

11 and 12, only the first wavelength light source 310 of the light source unit 300 is turned on, and the first wavelength light source 310 is turned on to output the first wavelength. The light source is blocked from passing through the photoelectric cutoff portion 415 and the selective light transmitting portion 413 of the screening filter portion 410, and is transmitted to the transparent filter 420 through only the light fighting portion 411. The first wavelength light transmitted through the light combat widow 411 is output through the symbol transmission part 411 of the transmission filter 420.

13 and 14 illustrate a case in which only the second wavelength light source 310 of the light source unit 300 forms an on state, and the second wavelength light source 320 forms an on state and is output. The light source is blocked only through the light transmission block 415 of the screening filter unit 410 and is allowed to pass through the light combat widow 411 and the selective light transmitting unit 413 to allow the transmission of the transparent filter unit 420. The symbol transmission unit 411 and the symbol expandable unit 423 are transmitted. As described above, the region where the second wavelength light is output is the projection of the transparent filter unit 400 of the selective light transmitting unit 413 to the outer region of the symbol transmitting unit 411 among the symbol transmitting unit 411 and the symbol expandable unit 423. By forming the output area of the light extended to the area corresponding to the area, it is possible to derive a quick visual recognition and visibility enhancement effect by providing a user, such as a driver, the visual effect of the extended shape of the symbol.

Meanwhile, the variable symbol display switch device according to the present invention detects the proximity of a user and executes a control process by detecting the proximity of a user in executing the variable symbol display function through the selective output of light according to the wavelength light of the light source unit as described above. It is also possible to take the configuration. The same reference numerals are given to the same components as in the previous embodiment. As shown in FIG. 15, the variable symbol display switch device 10a includes a housing 100, a substrate 200, a light source unit 300, and an optical filter unit 400, and the housing 100 includes a housing cover ( 110 and a housing body 120. The cover window 111 is provided at the housing cover 110 to expose at least a portion of the optical filter unit 400 that allows output of light generated from the light source unit 300, and the optical filter unit 400 is screened. The filter unit 410 and the translucent filter unit 420 are included. The screening filter unit 410 is disposed to face the light source unit 300, that is, the first wavelength light and the second wavelength light source 320 that are disposed to face the substrate 200 and are output from the first wavelength light source 310. It selectively permits transmission of the second wavelength light. The screening filter unit 410 includes an optical battle widow 411, a selective light transmitting unit 413, and an optical electric wave breaking unit 415, and the optical battle widow 411 is a first light emitted from the first wavelength light source 310. Transmitting both the wavelength light and the second wavelength light emitted from the second wavelength light source 320, the selective light transmission unit 413 allows only the transmission of the second wavelength light, and blocks the transmission of the first wavelength light, 415 blocks the transmission of all light of the first wavelength light and the second wavelength light.

The light source unit 300 is disposed on the substrate 200, and the light source unit 300 includes a first wavelength light source 310 and a second wavelength light source 320, and is formed by the screening filter unit 410 according to the wavelength band of the light source unit. The selective transmission can ultimately execute the variable symbol display function. The variable symbol display switch device 10a according to the present invention further includes a proximity sensor 510. The proximity sensor 510 detects the proximity of the user to the housing 100, and the proximity sensor 510 is electrically connected to the substrate 200. In this embodiment, the proximity sensor 510 is disposed on one surface of the substrate 200 and reflected infrared light reflected by a transmitter and a user's hand, which emits a predetermined infrared light signal through the translucent filter unit 420. All of the light receiving parts for receiving a signal are provided. In this embodiment, the proximity sensor 510 is disposed on one surface of the substrate 200, but the proximity sensor 510 makes an electrical connection with the substrate 200 through a conductive wire, etc., but is disposed in the housing 100 so that the housing ( A user's hand, etc., approaching the front of the screen 100 may be detected.

In addition, the proximity sensor 510 may be selected in various manners as well as the arrangement position. That is, as described above, the proximity sensor may be implemented as an infrared sensor, and in some cases, may be implemented as an ultrasonic sensor to detect proximity of the user, and may be formed by a laser sensor to detect proximity. Many variations are possible depending on the design specification.

The variable symbol display switch device 10a includes a controller 20, which is electrically connected to the proximity sensor 510 and the light source 300. The controller 20 may be disposed on the substrate 200 or may be variously modified such that the controller 20 may be spaced apart from the housing 100 and implemented as an external control device to take an external connection. The controller 20 receives a proximity signal as a detection signal output from the proximity sensor 510, and the controller 20 approaches the housing 100 from the housing 100 to the housing 100 using the user's hand. In this case, the operation of the preset light source unit 300 is adjusted. That is, the controller 20 outputs a light source control signal for controlling the light source unit 300 through the substrate 200, and the light source unit 300 outputs predetermined light according to the input light source control signal. The light source unit 300 includes a first wavelength light source 310 and a second wavelength light source 320, and the first wavelength light source 310 and the second wavelength light source 320 according to the light source control signal from the controller 20. May be controlled on / off, respectively, and thus the light output from the light source unit 300 may implement a predetermined variable symbol display function through the optical filter unit. For example, if the user does not close the hand to the housing, it outputs light in a normal state, for example, a first wavelength light, and when the user is close to the hand, according to the proximity signal from the proximity sensor 510. By changing a predetermined light source control signal to turn off the first wavelength light source 310 and to turn on the second wavelength light source 320, the output area of the light output through the optical filter part is changed to prompt and stable recognition of the user. You can also help.

In addition, the variable symbol display switch apparatus 10a may include a storage unit 30. The storage unit 30 is connected to the control unit 20, and may be disposed on the substrate 200 in the same manner as the control unit 20 on the substrate 200 or may be implemented as an external storage device. Various modifications are possible accordingly. The storage unit 30 stores preset data, and the controller 20 determines the operation mode of the light source unit 300 using the preset data. The preset data includes data for comparing output signals from sensors such as proximity sensor 510 and the like.

In addition, as shown in FIG. 16, the variable symbol display switch apparatus 10a according to the present invention may further include an illuminance sensor 530 that detects illuminance of an external environment of the housing 100, and in some cases, a vehicle. It may take a structure that receives a signal from the vehicle speed sensor 520 mounted to. That is, the control unit 20 of the variable symbol display switch device 10a according to the present invention may be mounted on the vehicle in addition to the proximity sensor to detect the illuminance of the vehicle speed sensor 520 and the illuminance outside the housing 100. The output signal from the sensor may also be input. The preset data stored in the storage unit 30 may include a proximity reference signal as reference data for determining whether the user is close to the vehicle, whether the vehicle's speed reference is exceeded, and whether it is day or night. The driving reference includes preset speed and illuminance reference signals.

The present invention includes a method of controlling the variable symbol display switch device (10a) as described above, the method of controlling the variable symbol display switch device as shown in Figs. 17 to 19, the providing step (S10) and the detection step (S20) ) And a mode setting determination step (S30) and a mode execution step (S40). In the providing step S10, the variable symbol display switch device 10a described in the above-described embodiment is controlled by the control unit 20 to one or more of the proximity sensor 510, the illuminance sensor 530, and the vehicle speed sensor 520. The signal is applied to provide a sensed signal, that is, an output signal. That is, the controller 20 applies the proximity sensor detection control signal to the proximity sensor 510 to receive the output signal detected by the proximity sensor 510 to detect the proximity of the user's hand.

In addition, the control unit 20 applies an illuminance sensor detection control signal for sensing the amount of light to the illuminance sensor 530 so that the illuminance sensor 530 detects day or night, and the control unit 20 controls the illuminance sensor ( The sensing signal output from the 530 is received. In this case, a single number of illuminance sensors 530 may be arranged, but a plurality of illuminance sensors may be arranged and used as data for determining a more accurate day and night state by calculating a value output from each illuminance sensor in a preset manner. have. That is, the illuminance sensor may have a structure in which a plurality of illuminance sensors may be arranged, such as an outer circumferential surface of the housing, an indoor ceiling of the vehicle, a wind shield, or a vehicle window. As described above, the calculation of the output signal generated when the plurality of illuminance sensors are arranged may include an average value from a plurality of output values, and various methods such as excluding maximum and minimum and adopting an intermediate value.

In addition, the controller 20 may receive a detected vehicle speed signal by applying a detection control signal for detecting a driving speed of the vehicle from the vehicle speed sensor 520. Of course, in some cases, whether the vehicle speed sensor is detected may be made through a separate control unit (not shown) of the vehicle, but the detection signal detected by the vehicle speed sensor is controlled by the control unit 20 of the variable symbol display switch device 10a. It is input to the control unit 20 through a signal.

The output signals detected in the sensing step S20 are transmitted to the control unit 20. The storage unit 30 stores preset data. The preset data includes an illumination reference signal, a driving reference preset speed, and a proximity reference signal. The proximity reference signal is used as a criterion for determining whether the user has intentionally approached when a body such as a user's hand approaches the housing 100. That is, the proximity reference signal is a signal that the proximity sensor 510 senses and outputs when approaching within a preset distance, which determines that the user intentionally approaches the body. This may be used to implement a function for improving the visibility of the driver by changing the size of the symbol when the driver approaches the hand to the variable symbol display switch device 10a to adjust the switch (not shown). In addition, the illuminance reference signal is used as reference data for determining whether the driving environment is daytime driving or nighttime driving when the current user, ie, the driver, runs the vehicle. That is, the illuminance reference signal may be used as a reference value for determining whether the current environment is day or night and compared with a sensing output signal output from the illuminance sensor 530. In addition, the driving reference preset speed is narrow when the driver is driving at high speed while driving, so the variable state of the symbol is formed at the time of the switch operation during driving. In this case, it can be used as reference data for determining whether the vehicle is traveling at high speed or low speed so as to maintain the symbol size in a steady state without performing unnecessary operation.

After the sensing step S20 is completed, the control unit 20 compares the detected output signal from each sensor received with the preset data stored in the storage unit 30 to execute an operation mode of the variable symbol display switch device. The judging mode decision step S30 is executed. That is, in the mode determining step S30, the controller 20 compares one or more output signals of the proximity sensor 510, the illumination sensor 530, and the vehicle speed sensor 520 with the preset data stored in the storage 30. Set the operation mode in which the light source unit 300 should be executed. The mode decision setting step S30 includes a day and night judgment setting step S31, an attention judgment setting step S33, and a proximity judgment setting step S35. In the day and night determination setting step S31, the controller 20 compares the illumination output signal from the illumination sensor 530 with the illumination reference signal included in the preset data to determine whether the environment is day or night. That is, when the illuminance output signal from the illuminance sensor 530 is smaller than the illuminance reference signal, the controller 20 determines that the driving environment in which the vehicle currently operates is at night, and thus the predetermined variable symbol, that is, symbol Judging by the state to change the size. On the other hand, when the illuminance output signal from the illuminance sensor 530 is equal to or greater than the illuminance reference signal, the controller 20 determines that the driving environment in which the vehicle currently operates is in the daytime state. In this case, the control unit 20 executes the weekly mode setting step S32 of setting the operation mode to be executed to the weekly mode.

When the controller 20 determines in step S31 that the current environment in which the vehicle is traveling is a night state, the controller 20 proceeds to step S33. The control unit 20 compares the vehicle speed output signal from the vehicle speed sensor 520 with the driving reference preset speed stored in the storage unit 30, and compares the driving speed state of the vehicle in the caution determination setting step S33. Determine whether the vehicle speed is enough for ventilation. That is, when the vehicle speed V corresponding to the vehicle speed output signal is equal to or higher than the driving reference preset speed Vs included in the preset data, the controller 20 determines that the current driving speed of the vehicle is fast, so that the user, that is, the driver In the case of looking to the variable symbol display switch device side to perform a predetermined switching operation, it is determined that the symbol should be enlarged to increase recognition. In this case, the controller 20 determines that the driving speed is high in the current night driving state, and sets the operation mode in which the variable symbol display switch device is to be executed in the night emphasis mode (S34). That is, the night emphasis mode refers to an operation mode in which the on / off signal applied to the light source unit 300 is switched to output the light of a specific wavelength light to increase the size of the symbol to execute the variable symbol.

On the other hand, when the vehicle speed V corresponding to the vehicle speed output signal is less than the driving reference preset speed Vs included in the preset data, the controller 20 determines that the current driving speed of the vehicle is slow, so that the user, that is, the driver When the user observes the variable symbol display switch device side to perform a predetermined switching operation, it is determined that the symbol does not need to be enlarged.

When the vehicle speed V is higher than the driving reference preset speed in the caution judgment setting step S33, and it is determined that the user needs attention, the controller 20 may store the proximity output signal and the storage unit () from the proximity sensor 530. Proximity determination setting step (S35) of comparing the proximity reference signal stored in 30 to determine whether the user is close to the housing 100 is executed.

In the proximity determination setting step S35, the controller 20 compares the proximity output signal from the proximity sensor 510 with the proximity reference signal stored in the storage 30 to determine whether the user is close to the housing 100. . The controller 20 compares the proximity reference signal with the proximity output signal, and when it is determined that the user, ie, the driver's hand, etc. is in close proximity, the control unit 20 switches the control flow to step S34 to set the night emphasis mode to the operation mode.

On the other hand, if the control unit 20 does not determine that the driver's hand is close in the proximity determination setting step (S35) (S36). The normal night mode refers to an operation mode in which an on-signal is applied to a first wavelength light source of the light source unit 300 to output light, but an off-signal is applied to a second wavelength light source that executes a symbol emphasis function. . The control unit 20 determines whether or not the proximity in the proximity determination setting step (S35) is the infrared or ultrasonic signal reflected by comparing the intensity of the infrared or ultrasonic signal reflected by the driver's hand and the like with the proximity reference signal in this embodiment. That is, when the proximity output signal is larger than the proximity reference signal, it is determined to be in a proximity state, and in the opposite case, it is determined that the driver's hand, etc. are not in proximity. Various configurations may be made in a range in which the control unit 20 compares signals to determine whether there is proximity.

After the mode setting determination step S30 is completed, the control unit 20 executes the mode execution step S40 (see FIG. 19). In the mode execution step S40, the control unit 20 executes each set operation mode. do. That is, when the control unit 20 determines that the operation mode is the day mode, the control unit 20 applies an off signal to both the first wavelength light source and the second wavelength light source of the light source unit 300 to display a symbol through a separate light source. The weekly mode execution step (S41) that does not execute is executed.

In addition, when the control unit 20 determines that the operation mode to be executed is the normal night mode, that is, in the caution judgment setting step S33, it is determined that the vehicle speed output signal is less than the driving reference preset speed or the proximity judgment setting step S35. If it is determined that the driver, who is a user, does not bring his or her hand close to the housing 100, the ON signal is applied to the first wavelength light source so as to maintain the output area of the light in a normal state so as not to change the size of the symbol. The night light normal mode execution step (S43) of executing the night normal mode to apply an off signal to the light source is performed.

In addition, the control unit 20 determines that the vehicle speed output signal is equal to or higher than the driving reference preset speed in the attention determination setting step S33, and the user, that is, the driver's hand, is close to the housing 100 in the proximity determination setting step S35. If it is determined, the night highlight mode execution step (S45) of executing the night highlight mode to change the light output area to the expanded state having an area larger than the normal state is performed. In step S45, the control unit 20 applies an OFF signal to the first wavelength light source and an ON signal to the second wavelength light source, thereby changing the output area of the light to an expanded state larger than the normal state, thereby expanding the symbol. To be displayed.

On the other hand, the variable symbol display switch device according to the present invention can facilitate the switching operation by the driver by improving the visibility through the variable symbol display through the proximity sensor, the variable symbol display switch device 10b is shown in Figs. As shown in FIG. 20, the switching unit 600 may be further provided. The switching unit 600 may be disposed in the inner space of the housing 100. In the present exemplary embodiment, the switching unit 600 is disposed on the lower surface of the translucent filter unit 420 of the optical filter unit 400. Implemented as a touch sensor. The switch unit 600 is disposed on the bottom surface of the translucent filter unit 420 and is electrically connected to the substrate 200 through the switch wiring 601. The switch unit 600 is supplied with power through the substrate 200 and applied to the driver's contact. The electrical signal generated by the change may be transmitted to the external control device or the control unit through the substrate 200 via the switch wiring 601.

In FIG. 20, a switching unit implemented as a capacitive touch sensor is described. However, the variable symbol display switch device of the present invention can implement various switch functions without being limited thereto. That is, as shown in FIG. 21, the housing 100c of the variable symbol display apparatus 10c includes a housing cover 110c and a housing body 120c, and the housing cover 110c is disposed on the housing body 120c. The structure may be slidably disposed, and the screening filter unit 410 and the translucent filter unit 420 of the optical filter unit 400 may have a structure in which the housing cover 110c is fixedly disposed. The substrate 200 may be disposed in a fixed position inside the housing body 120c, and the switching unit 500c may include a switching movable unit 610c and a switching operation unit 620c. The switch movable part 610c extends inside the housing cover 110c, and the switch movable part 610c moves together with the housing cover 110c. The switching operation part 620c is disposed on one surface of the substrate 200 corresponding to the switch moving part 610c. The switch operating part 620c is operated by the switch moving part 610c. In the present embodiment, the switch operating part 620c is implemented as a tact switch. However, the switch operating part 620c may be variously configured in the range of being pressed by the switch moving part 610c to change the electrical signal.

In addition, although the variable symbol display switching device in the above embodiment has been described in which the structure is changed based on only one symbol, various modifications are possible. That is, as shown in FIG. 22, a plurality of variable symbols S1, S2, S3,... Sn may be disposed on the optical filter unit 400. The variable symbol display switching device 10d includes a housing cover 110d, a housing body 120d, and a housing separator 130d, and the housing separator 130d is disposed between the housing cover 110d and the housing body 120d. do. The housing separator 130d includes at least one separator horizontal portion 131d and a separator vertical portion 133d. The housing separator 130d is formed by a plurality of planes formed by the separator horizontal portion 131d and the separator vertical portion 133d. The space is divided into two spaces. The area divided by the housing separator 130d corresponds to an area in which the one or more variable symbols S1, S2, ..., Sn are disposed. The substrate 200 is disposed between the housing separator 130d and the housing body 120d, and a plurality of light source units 300, 300a, 300b, .. are disposed on one surface of the substrate 200. That is, an independent symbol variable display function may be performed by separately providing a first wavelength light source and a second wavelength light source that output light of different wavelength bands. Of course, in this case, the wavelength band of the wavelength light source provided in each light source unit may be the same, or may be different, and various configurations are possible according to a design specification.

In the above embodiment, a structure including two light sources and a single selective light transmitting unit has been described. However, as described above, a plurality of variable symbol regions may be provided, and various types of switching units may be provided. In addition, in the present embodiment, the control unit is described as including a calculation function, but a separate operation unit may be further provided, and the present invention is not limited thereto.

10 ... Variable symbol display switch unit 100 ... Housing
200 ... substrate 300 ... light source
400 ... light filter unit 410 ... screen filter unit
420 ... two-way lucent filter part 500 ... switching part

Claims (23)

housing; A substrate disposed fixed to the housing; A light source unit disposed on the substrate and including a first wavelength light source for outputting a first wavelength light and a second wavelength light source for outputting a second wavelength light in a wavelength band different from that of the first wavelength light; An optical filter unit selectively transmitting the first wavelength light or the second wavelength light and changing an output region of light according to the operation of the light source unit; A proximity sensor electrically connected to the substrate to detect proximity of the user to the housing; And a controller electrically connected to the proximity sensor and the light source unit and receiving a proximity signal from the proximity sensor and outputting a light source control signal to the light source unit to adjust an operation of the light source unit according to whether the user is close to the housing. With;
The optical filter unit may be disposed to face the light source unit, the screening filter unit to selectively allow transmission of the first wavelength light or the second wavelength light, and the screening filter unit to be disposed between the light source unit, And a through-transient filter unit in which an output region of light is changed in accordance with the first wavelength light or the second wavelength light that has passed through the screening filter unit. The method of claim 1,
And the proximity sensor comprises an infrared sensor. The method of claim 1,
And the proximity sensor comprises an ultrasonic sensor. delete The method of claim 1,
The screening filter unit:
A light fighting wiper for transmitting both the first wavelength light and the second wavelength light;
A selective light transmission unit allowing only transmission of the second wavelength light;
And a photoelectric shield for blocking both the first wavelength light and the second wavelength light. 6. The method of claim 5,
And the selective light transmitting part is set to have a transmittance of 10% or more with respect to light in a wavelength range of 500 nm to 800 nm. The method of claim 1,
The two-through lucent filter unit:
A symbol transmission portion having at least a partly intersecting projection area with the light combat wiper and configured to pass both the first wavelength light and the second wavelength light;
And a symbol expandable portion formed outside the symbol transmission portion and having transmittances of the first wavelength light and the second wavelength light smaller than the symbol transmission portion. 8. The method of claim 7,
The transmittance of the symbol expandable portion is a variable symbol display switch device, characterized in that 40% to 60% of the transmittance of the symbol transmission. 8. The method of claim 7,
The symbol transmission unit is characterized in that the symbol icon for increasing the daytime visibility is formed. The method of claim 9,
The variable symbol display switch device, characterized in that the color of the symbol is white. 8. The method of claim 7,
And the symbol transmission part comprises a cross projection area identical to that of the light combat widow. The method of claim 3, wherein
And the first wavelength light source is a blue lamp for outputting blue light. The method of claim 1,
And the second wavelength light source is a red lamp for outputting red light. housing; A substrate disposed fixed to the housing; A light source unit disposed on the substrate and including a first wavelength light source for outputting a first wavelength light and a second wavelength light source for outputting a second wavelength light in a wavelength band different from that of the first wavelength light; An optical filter unit selectively transmitting the first wavelength light or the second wavelength light and changing an output region of light according to the operation of the light source unit; A proximity sensor electrically connected to the substrate to detect proximity of the user to the housing; And a controller electrically connected to the proximity sensor and the light source unit and receiving a proximity signal from the proximity sensor and outputting a light source control signal to the light source unit to adjust an operation of the light source unit according to whether the user is close to the housing. With;
And an illuminance sensor electrically connected to the control unit and detecting an illuminance outside the housing.
And a vehicle speed signal from a vehicle speed sensor detecting a speed of a vehicle on which the housing is mounted is transmitted to the controller. housing; A substrate disposed fixed to the housing; A light source unit disposed on the substrate and including a first wavelength light source for outputting a first wavelength light and a second wavelength light source for outputting a second wavelength light in a wavelength band different from that of the first wavelength light; An optical filter unit selectively transmitting the first wavelength light or the second wavelength light and changing an output region of light according to the operation of the light source unit; A proximity sensor electrically connected to the substrate to detect proximity of the user to the housing; And a controller electrically connected to the proximity sensor and the light source unit and receiving a proximity signal from the proximity sensor and outputting a light source control signal to the light source unit to adjust an operation of the light source unit according to whether the user is close to the housing. ; A storage unit connected to the control unit and storing preset data for the control unit to determine an operation mode of the light source unit; A variable symbol display switch device electrically connected to the control unit and having an illumination sensor for sensing an illumination of the outside of the housing, wherein a vehicle speed signal from a vehicle speed sensor for detecting a speed of a vehicle on which the housing is mounted is transmitted to the control unit. Providing a providing step,
A sensing step of receiving, by the controller, an output signal by applying a sensing control signal to at least one of the proximity sensor, the illuminance sensor, and the vehicle speed sensor;
A mode determination setting step of setting, by the control unit, at least one output signal of the proximity sensor, the illuminance sensor, and the vehicle speed sensor and preset data of the storage unit to set an operation mode in which the light source unit should be executed;
And a mode execution step of the control unit outputting a light source control signal according to the operation mode to the light source unit so as to execute the operation mode set in the mode determination step. 16. The method of claim 15,
In the sensing step, an output signal sensed by the proximity sensor, the illuminance sensor, and the vehicle speed sensor is transmitted to the controller, and the preset data includes an illuminance reference signal for determining whether it is day or night, a driving reference preset speed of the vehicle, And a proximity reference signal for determining whether the user is close to the housing,
The mode determination setting step is:
Day and night judgment setting step of determining whether the day and night environment by comparing the illumination output signal from the illumination sensor and the illumination reference signal;
In the day and night judgment setting step, when the control unit determines that the night environment, the caution judgment setting to determine whether the vehicle speed requires the user's attention by comparing the vehicle speed output signal from the vehicle speed sensor and the driving reference preset speed Steps,
If it is determined that the vehicle speed is higher than the driving reference preset speed in the caution judgment setting step, it is determined that the user needs attention, the proximity output signal from the proximity sensor is compared with the proximity reference signal, and the user approaches the housing. And a proximity determination setting step of determining whether to perform a proximity mode or a non-proximity mode by determining whether the image is determined. 17. The method of claim 16,
The mode execution step is:
And a day mode execution step of applying an off control signal to the light source unit when the controller determines that the daytime environment is in the day and night determination setting step. 17. The method of claim 16,
The mode execution step is:
When it is determined that the vehicle speed output signal is less than the driving reference preset speed in the caution judgment setting step, or when it is determined that the user does not approach the housing in the proximity judgment setting step, the light output area is maintained in a normal state. And a night normal mode step of controlling the variable symbol display switch device. 17. The method of claim 16,
The mode execution step is:
In the caution judgment setting step, when the vehicle speed output signal is determined to be greater than or equal to the driving reference preset speed, and in the proximity judgment setting step, the user is determined to be close to the housing, the light output area includes a larger area than the normal state. And a night highlight mode step of changing to an extended state. housing; A substrate disposed fixed to the housing; A light source unit disposed on the substrate and including a first wavelength light source for outputting a first wavelength light and a second wavelength light source for outputting a second wavelength light in a wavelength band different from that of the first wavelength light; An optical filter unit selectively transmitting the first wavelength light or the second wavelength light and changing an output region of light according to the operation of the light source unit; A proximity sensor electrically connected to the substrate to detect proximity of the user to the housing; A switching unit disposed below the optical filter unit to change a switching signal by a user's operating operation; And a light source control signal electrically connected to the proximity sensor, the light source unit and the switching unit, to receive a proximity signal from the proximity sensor, and to adjust an operation of the light source unit according to whether the user is close to the housing. A control unit for outputting to a light source unit and outputting a switching operation signal corresponding to the switching signal from the switching unit,
The optical filter unit may be disposed to face the light source unit, the screening filter unit to selectively allow transmission of the first wavelength light or the second wavelength light, and the screening filter unit to be disposed between the light source unit, And a through-transient filter unit in which an output region of light is changed in accordance with the first wavelength light or the second wavelength light that has passed through the screening filter unit. The method of claim 20,
And the switching unit is a capacitive touch sensor. The method of claim 20,
Said housing comprising:
A housing cover and a housing body disposed to face the housing cover;
The housing cover is disposed relative to the housing body,
The switching unit:
A switching movable part disposed on the housing cover;
And a switch operating part disposed on the substrate and disposed corresponding to the switch movable part. The method of claim 20,
Said housing comprising:
A housing cover disposed between the housing cover and the housing body, the housing separator disposed between the housing cover and the housing body and for partitioning a plane;
The optical filter unit includes a plurality of output regions in which light is changed at positions corresponding to regions divided by the housing separator,
And a plurality of light source units disposed at positions corresponding to regions divided by the housing separator.

Images