KR20130003464A - Power window switching module - Google Patents

Abstract

PURPOSE: A variable symbol display device is provided to increase visibility and perform clear visual recognition. CONSTITUTION: A variable symbol display device(10) includes a housing(100), a substrate(200), a light source unit(300) and an optical filter unit(400). The substrate is fixed on the housing. The light source unit is arranged on the substrate. The light source unit includes a first wavelength light source outputting first wavelength light and a second wavelength light source outputting second wavelength light. The optical filter unit changes an output area of light corresponding to an operation of the light source unit.

Description

Variable Symbol Display Device {POWER WINDOW SWITCHING MODULE}

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 device that can reduce manufacturing costs while increasing the visibility and enabling 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; A variable symbol display apparatus including an optical filter unit for 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.

In the variable symbol display apparatus, 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 so as to be disposed, and may include a two-through lucent filter unit in which an output region of light is changed according to the first wavelength light or the second wavelength light that has passed through the screening filter unit.

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

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

In the variable symbol display apparatus, the two-transmittance filter unit includes: a symbol transmission unit configured to have both the light combat widow and at least a partial cross-projection area and to pass both the first wavelength light and the second wavelength light, and the symbol transmission unit It may be formed on the outside of, and may include a symbol expandable portion having a transmittance of the first wavelength light and the second wavelength light smaller than the symbol transmission portion.

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

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

In the variable symbol display apparatus, the symbol transmission unit may have the same cross-projection area as that of the light combat widow.

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

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

The variable symbol display apparatus according to the present invention having the configuration as described above has the following effects.

First, the variable symbol display apparatus according to the present invention allows selective transmission according to the wavelength of light and finally enables visual visibility and quick visual recognition of a user such as a driver with visual effects such as a change in the size of a symbol. Can be.

Second, the variable symbol display apparatus 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 apparatus according to the present invention may implement various selective output functions through various arrangements of the optical combat widow and one or more selective light penetrating units.

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 apparatus having a unit switch according to an exemplary embodiment of the present invention.
2 is a schematic exploded perspective view of a variable symbol display apparatus according to an exemplary embodiment of the present invention.
3 is a schematic partial cross-sectional view of a variable symbol display apparatus according to an exemplary embodiment.
4 is a schematic perspective view of a screening filter unit of a variable symbol display 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 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 device according to an exemplary embodiment of the present invention.
8 and 9 are diagrams showing transmittances of wavelength bands of two-transmittance filter units of a variable symbol display apparatus according to an 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 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 device according to an embodiment of the present invention.
13 and 14 are perspective and exploded perspective views of the on-operation state of the second wavelength light source of the light source unit with respect to the two-transient filter unit of the variable symbol display device according to the exemplary embodiment of the present invention.

Hereinafter, a variable symbol display apparatus according to the present invention will be described with reference to the drawings.

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

The variable symbol display 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 410 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 410. 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 410 is made by expanding 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 apparatus 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.

In the above embodiment, a structure including two light sources and a single selective light transmitting unit has been described, but the present invention is not limited thereto. That is, various configurations may be achieved through a structure including a plurality of light sources, at least one phototransmitting unit, and a plurality of selective light transmitting units. That is, as shown in FIG. 15, a symbol that is gradually increased by having a selective light transmitting unit for outputting only light of different wavelength bands on the outside of the optical combat widow and each wavelength light source for outputting a plurality of different wavelength lights A variable display structure may be formed, and a variable size structure of a plurality of symbol icons may be obtained by adopting an optical filter unit structure having a selective light transmitting unit assigned to an optical battle widow separately provided in different regions as shown in FIG. 16. Various configurations are possible as well.

10 ... Variable symbol display unit 100 ... Housing
200 ... substrate 300 ... light source
400 ... light filter unit 410 ... screen filter unit
420 ... two-through lucent filter unit

Claims (11)

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;
And an optical filter unit configured to selectively transmit the first wavelength light or the second wavelength light and change an output region of light according to the operation of the light source unit. The method of claim 1,
The optical filter unit:
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 a translucent filter unit positioned such that the screening filter unit is disposed between the light source unit and the output region of the light depending on the first wavelength light or the second wavelength light passing through the screening filter unit. Variable symbol display device. The method of claim 2,
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. The method of claim 3, wherein
The selective light transmitting unit is set to have a transmittance of 10% or more for light in the wavelength range of 500nm to 800nm. The method of claim 2,
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. 6. The method of claim 5,
The transmittance of the symbol expandable portion is a variable symbol display device, characterized in that 40% to 60% of the transmittance of the symbol transmission portion. 6. The method of claim 5,
The symbol transmission unit is characterized in that the symbol icon for increasing the daytime visibility is formed. 8. The method of claim 7,
The variable symbol display device, characterized in that the color of the symbol is white. 6. The method of claim 5,
And the symbol transmission part has the same cross-projection area as that of the light combat widow. The method of claim 1,
The first wavelength light source is a variable symbol display device, characterized in that the blue lamp for outputting blue light. The method of claim 1,
The second wavelength light source is a variable symbol display device, characterized in that the red lamp for outputting red light.

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