KR102430521B1 - Numeric display device for identification in day and night - Google Patents

Abstract

The present invention relates to a number display device that can be easily identified both day and night by attaching and detaching a number segment display piece using a magnet. The present invention relates to (a) a flat light emitting device including a light diffusing means; (b) an ambient light blocking means formed to be detachably attached to the light emitting surface of the planar light emitting device and having a through hole formed in a portion corresponding to each segment of the 7 segment; And (c) it is manufactured in the same shape as the through hole of the ambient light blocking means, and provides a number display device for easy day and night identification including a segment display means for expressing 7 segments by being detachably attached to the position of each segment.

Description

Numeric display device for identification in day and night}

The present invention relates to a number display device capable of day and night identification, and more particularly, to a number display device that can be easily identified both day and night by attaching and detaching a number segment display piece using a magnet.

7-segment indicator refers to a device made to display the numbers 0 to 9. Seven light emitting units are arranged in a figure 8 shape and each light emitting unit is turned on or off to display a decimal number. means the device is

In such a 7-segment indicator, each light emitting part in the shape of a bar is called a segment, and since the number is displayed using 7 light emitting parts, it is called a 7-segment indicator.

The conventional 7-segment display has a bar-type light emitting diode or LCD (Lyquid Crystal Diaplay) built in, respectively, and a current is applied to display a number through the light-emitting segments. However, in the case of a segment using such a light emitting diode or LED, since each segment must be controlled independently, a control device must be separately provided.

These inexpensive 7-segments are simply marked with numbers by manually attaching and detaching 7 segments with different colors from the background (see FIG. 1), and the numbers are displayed using the difference from the background color. However, this display method is difficult to identify at night or on a cloudy day, and the recognition distance is short, requiring efforts to improve it.

(0001) Republic of Korea Patent No. 10-0783563 (0002) Republic of Korea Patent Publication No. 10-2019-0071983

In order to solve the above problem, the present invention is to provide a number display device that can be easily identified both day and night by attaching and detaching a number segment display piece using a magnet.

In order to solve the above problem, the present invention provides (a) a planar light emitting device including a light diffusing means; (b) an ambient light blocking means formed to be detachably attached to the light emitting surface of the planar light emitting device and having a through hole formed in a portion corresponding to each segment of the 7 segment; And (c) it is manufactured in the same shape as the through hole of the ambient light blocking means, and provides a number display device for easy day and night identification including a segment display means for expressing 7 segments by being detachably attached to the position of each segment.

In one embodiment, in the number display device, after attaching the ambient light blocking means, the number is displayed by detaching the segment display means on a portion corresponding to the segment of each number, or by detaching the ambient light blocking means. Next, the number can be displayed by attaching the segment display means to a portion corresponding to the segment of each number.

In one embodiment, the segment display means includes an insertion portion having the same size as the through portion; and a light leakage preventing means positioned above the insertion part and formed to be larger than the size of the through part.

In one embodiment, the segment display means is attached so that the insertion part is in contact with the flat light emitting device when the ambient light blocking means is attached, and when the ambient light blocking means is detached, the light leakage preventing means is the flat light emitting device It may be attached to contact the device.

In one embodiment, the segment display means may have a recessed portion formed on one side or both sides of the light leakage preventing means.

In one embodiment, a first magnetic material is installed on the segment display means, and a second magnetic material is installed at a corresponding position of the planar light emitting means so that the segment display means is attached to the flat light emitting means by magnetism. can

The number display device according to the present invention displays numbers by selectively blocking light generated from a flat light emitting device including a light diffusion plate, unlike the existing 7-segment number display device, and thus has higher visibility compared to the existing number display device. may have, and as the 7 segments are displayed by attaching and detaching the ambient light blocking means, it is possible to provide a number display device having high visibility both day and night.

1 schematically illustrates a 7-segment display method according to an embodiment of the present invention.
Figure 2 shows a 7-segment display method according to an embodiment of the present invention, wherein (a) is an embossed display method, (b) is an engraved display method, respectively.
3 briefly shows the configuration of a flat light emitting device according to an embodiment of the present invention.
4 shows a front (a) and a rear (b) of the segment display means according to an embodiment of the present invention, respectively.
Figure 5 shows a segment display means including a light leakage preventing means according to an embodiment of the present invention, (a) is a front view, (b) is a rear surface (c) shows a section A-A' portion.
6 shows a segment display means in which a magnetic material is installed in the light leakage prevention means according to an embodiment of the present invention, (a) is a front surface, (b) is a rear surface (c) is a cross section of A-A' .
7 shows a segment display means in which a magnetic material is installed in the extended part of the light leakage preventing means according to an embodiment of the present invention, (a) is a front view, (b) is a rear view.
8 is a cross-sectional view after the installation of the segment display means including the light leakage preventing means according to an embodiment of the present invention, (a) is the embossed display method and the engraved display method when the light leakage preventing means is inserted into the through portion, (b) shows the embossed display method and the engraved display method, respectively, when the light leakage preventing means is located outside the through portion.
9 is a cross-sectional view after the installation of the segment display means in which the magnetic material is installed in the light leakage preventing means according to an embodiment of the present invention, (a) is an embossed display method, (b) is a engraved display method, respectively.

Hereinafter, preferred embodiments of the present invention will be described in detail. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted. Throughout the specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

The technology disclosed herein is not limited to the implementations described herein and may be embodied in other forms. However, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the technical spirit of the present technology may be sufficiently conveyed to those skilled in the art. In the drawings, in order to clearly express the components of each device, the sizes of the components such as width and thickness are somewhat enlarged. In the description of the drawings as a whole, it has been described from an observer's point of view, and when an element is referred to as being positioned on another element, this means that the element may be positioned directly on the other element or an additional element may be interposed between the elements. include In addition, those of ordinary skill in the art will be able to implement the spirit of the present invention in various other forms without departing from the technical spirit of the present invention. And the same reference numerals in the plurality of drawings refer to elements that are substantially the same as each other.

Terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present invention, the terms include or have is intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features, number, step , it should be understood that it does not preclude in advance the possibility of the existence or addition of an operation, component, part, or combination thereof.

On the other hand, the meaning of the terms described in this specification should be understood as follows. Terms such as “first” or “second” are for distinguishing one component from other components, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

In addition, the singular expression should be understood to include the plural expression unless the context clearly dictates otherwise, and terms such as "comprises" or "have" refer to the described feature, number, step, operation, component, or part. or a combination thereof, but it is to be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof. In addition, in performing the method or the manufacturing method, each process constituting the method may occur differently from the specified order unless a specific order is clearly described in context. That is, each process may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

In this specification, the term 'and/or' includes a combination of a plurality of listed items or any of a plurality of listed items. In this specification, 'A or B' may include 'A', 'B', or 'both A and B'.

1 shows a 7-segment display method according to an embodiment of the present invention.

The present invention relates to (a) a flat light emitting device including a light diffusing means; (b) an ambient light blocking means formed to be detachably attached to the light emitting surface of the planar light emitting device and having a through hole formed in a portion corresponding to each segment of the 7 segment; And (c) it is manufactured in the same shape as the through hole of the ambient light blocking means, it relates to a number display device for easy day and night identification comprising a segment display means for expressing 7 segments by being detachably attached to each segment position.

The flat light emitting device 100 is a portion that is located on the lowermost surface of the number display device and supplies light, and may include a light diffusion means to supply uniform light throughout the number display device. Since the number display device of the present invention displays numbers using light emitted from the flat light emitting device, it is preferable that the flat light emitting device emit uniform light in order to maximize visibility. In this case, the light diffusion means can be used without limitation as long as it is a device that allows the flat light emitting device 100 to emit uniform light, but is preferably a light emitting device in which LEDs are uniformly disposed on the rear surface of the light diffusion plate or a light guide plate. It may be a light emitting device in which an LED is disposed on the side of the .

The light emitting device in which the LEDs are uniformly arranged on the rear surface of the light diffusion plate may include a light diffusion plate capable of uniformly dispersing light incident from the rear surface, and the LEDs may be arranged on the rear surface of the light diffusion plate. The light diffusing plate includes light diffusing particles therein or has a light diffusing structure on the surface, so that light incident from the rear can be uniformly emitted to the front of the light diffusing plate, thereby displaying a number located on the front side A uniform light can be supplied in the direction of the device.

The light guide plate is widely used in the backlight portion of the LED, and a plurality of light transmitting means are disposed on the surface at predetermined intervals, and the light supply means for supplying light are disposed on the side surface of the light guide plate. The light supplied from the light supply means is incident on the side surface of the light guide plate, and since the incident light is incident on the front surface of the light guide plate at an angle less than the critical angle, it can be continuously reflected inside the light guide plate. However, when such light comes into contact with the light transmitting means, it has an angle greater than or equal to a critical angle, so that the light can be supplied to the outside. In this case, a large amount of light is provided in the vicinity of the light supply means, and a small amount of light can be supplied to a distant part, so that the arrangement density of the light transmitting means is lowered at a point close to the light supply means, and a portion farther from the light supply means. In this case, it is possible to increase the arrangement density of the light supply means so that the overall uniform light can be emitted to the outside. In this case, the light supply means is preferably an LED, and the light transmission means is preferably a micro lens. In addition, the flat light emitting device can emit the same light over the entire light emitting surface, but in order to change the color of each displayed number, a color filter can be included at a desired point to change the color of each displayed number, and the light emitting amount adjusting device It is also possible to adjust the brightness of the number displayed by including .

In addition, a light dispersing means may be additionally installed on the front surface of the light guide plate so that light supplied through the light transmitting means may be uniformly supplied as a whole.

The ambient light blocking means 200 is a means for blocking light emitted from the periphery except for the 7-segment portion, and has a 7-segment-shaped through-hole, so that when it is installed on the front surface of the flat light emitting device, it constitutes an “8” character. (refer to the upper figure of Fig. 2 (a)). In addition, the seven segments are arranged left and right to express a desired number of digits, and it is also possible to express a number constituting a plurality of columns by being arranged vertically.

The ambient light blocking means 200 is combined with the segment display means 300 to be described later to express numbers in a way that the number part emits light (embossed display), but without using the ambient light blocking means 200 It is also possible to express numbers in a way that only the periphery of the number part emits light (intaglio display) using the segment display means 300 .

In the case of the through part, it is preferable to have a long hexagonal shape on one side used in a general 7 segment, but may be formed in various shapes such as an oval, a square, etc. according to the design of the number to be expressed.

The segment display means 300 is a device for expressing a number by blocking a portion of the light supplied from the flat light emitting device 100, and can express a number through two methods. That is, the number display device displays a number by attaching the ambient light blocking means and then detaching the segment display means to a portion corresponding to the segment of each number, or detaching the ambient light blocking means, A number can be displayed by attaching the segment display means to a portion corresponding to the segment.

(1) embossed mark

Figure 2 (a) shows the display of a four-digit number by the embossed display method.

The embossed display method is a method of displaying a number using the divergence of light, and a segment portion emitting light is a method of displaying a number. Looking at this in detail, an ambient light blocking means 200 is attached to the surface of the planar light emitting device 100 to block light in portions except for 7 segments for marking. At this time, the light emitted by the flat light emitting device 100 is emitted only through the through portion of the ambient light blocking means, that is, the 7-segment portion, and the light in the portion except for the 7-segment is blocked by the ambient light blocking means 200 . do. Thereafter, numbers can be expressed by attaching and detaching the segment display means 300 to each segment. Since the embossed display device displays numbers using light, it can be more usefully used in a dark environment or at night.

(2) engraved display

Figure 2 (b) shows the display of a 4-digit number by the intaglio display method.

The engraved display method is a method of displaying numbers using a shadow, and unlike the embossed display method, an ambient light blocking means is not attached to the flat light emitting device 100 . Looking at this in detail, the flat light emitting device 100 emits uniform light, and then attaches the segment display means 300 to the position of each segment. block In this case, each segment can be displayed using a shadow of the light or a color difference from the light, and since a number is displayed using a shadow, it can be usefully used in a bright environment or during the day .

To this end, the segment display means 300 may be manufactured to be inserted into the through-hole of the ambient light blocking means 200 . That is, it is preferable that the segment display means 300 is manufactured to have the same shape as the through portion, and is inserted so that a gap between the through portion and the through portion is minimized. In this case, when the embossed display method is used, the segment display means 300 may be inserted into the through-hole of the ambient light blocking means 200 to block light, and when the engraved display method is used, the flat light emitting device 100 ) can be attached to the surface to form a shadow representing the 7-segment.

However, when used in the embossed display means, a portion of the light may leak out through the gap between the segment display means 300 and the through portion, so the segment display means 300 has the same size as the through portion. Insertion part 320 having a; and a light leakage preventing means 330 positioned above the insertion part and formed to be larger than the size of the through part (see FIG. 5 ). The insertion part 320 is a part inserted into the through-hole as described above, and the light leakage preventing means 330 covers the gap generated between the segment display means 300 and the through-hole, so that it is not desired to the outside. It is possible to minimize the emission of undesirable light. However, when the intaglio display method is used, the light leakage preventing means 330 may cause a gap with the flat light emitting device 100 to scatter some of the light. scattering can be minimized (see the photo below in FIGS. 8 (a) and (b)).

That is, the segment display means 300 is attached so that the insertion part 320 comes into contact with the flat light emitting device 100 when the ambient light blocking means 200 is attached, and the ambient light blocking means 200 is When detached, the light leakage preventing means 330 may be attached to be in contact with the flat light emitting device 100 .

In addition, the light leakage preventing means 330 may be completely inserted into the through-hole (FIG. 8(a)), but it is also possible to block the light by being located outside the through-hole (FIG. 8(b)). . When fully inserted into the through-hole, the through-port may have a wall having a step to be the same as the shape of the insertion portion and the light leakage preventing means, and when only the insertion portion is inserted into the through-hole, simply a vertical wall surface can have

The light leakage preventing means may be manufactured to have a constant thickness ratio with the insertion part. When the thickness of the segment display means is D and the thickness of the light leakage preventing means is d, d/(D-d) may be 0.3 to 1. When d/(D-d) is less than 0.3, the thickness of the light leakage preventing means becomes thin and it may be difficult to block the circular light. You can get out of position.

The segment display means 300 may have depressions formed on one side or both sides of the light leakage preventing means 330 . The recessed portion is installed to facilitate detachment of the segment display means 300 , and has a disadvantage in that it has to be lifted using a sharp tool when the segment display means 300 is detached when it has a simple vertical wall surface. In particular, the use of such a sharp tool may damage the segment display means 300 or the ambient light blocking means 200 so that the light emitted from the flat light emitting device 100 may leak out. Accordingly, by installing the recessed portion on the side of the segment display unit 300 , particularly the side surface of the light leakage preventing unit 330 , the segment display unit 300 can be more easily attached and detached. However, when the light leakage preventing means 330 is completely inserted into the through portion, since it is inserted into the through portion up to the recessed portion, it may be impossible to attach and detach the segment display means 300 using this. In order to improve this, it is preferable to make a part of the periphery of the through-hole low in height to expose the recessed part to facilitate attachment and detachment of the segment display means 300 .

A first magnetic material 310 is installed in the segment display means 300 , and a second magnetic material 110 is installed in a position corresponding to the planar light emitting means 100 , so that the segment display means is displayed by magnetism. It may be attached to the planar light emitting means (see FIGS. 3 and 4).

Preferably, the first magnetic material 310 and the second magnetic material 320 are installed at positions corresponding to each other so that the segment display means 300 can maintain an accurate position. At this time, the first magnetic material 310 and the second magnetic material 320 may use the same magnet, but one magnetic material uses a magnet and the other magnetic material uses a ferromagnetic material to attach the segment display means. It is possible. That is, the segment display means can be fixed by installing a magnet on the flat light emitting device and then installing an iron plate on the segment display means. It is also possible to fix the segment display means. Of course, it is also possible to have a high fixing force by installing magnets on both sides of the flat light emitting device and the segment display means.

In addition, when the first magnetic material and the second magnetic material use the same magnet, the magnets attached to the light emitting display means are attached with opposite poles to each other. It is desirable to be able to attach to it.

In addition, when the embossed display method is used, the first magnetic material may be installed in a light leakage preventing means installed outside of the segment display means to prevent blocking of light due to the installation of the magnetic material (refer to FIG. 6) , the second magnetic material may be installed at a position corresponding to the outside of the through portion. Through this, when the embossed display method is used, since the magnetic material is covered by the ambient light blocking means, it is possible to firmly attach the magnetic material without exposing the magnetic material to the outside (FIG. 9(a)). In addition, even in the case of using the engraving display method, since the magnetic material is covered by the segment display means, it is possible on the surface of the number without exposing the magnetic material (FIG. 9(b)). In addition, when the magnetic material is installed in the light leakage preventing means as described above, the magnetic material uses a smaller size than the magnetic material installed in the center of the segment display means. It is preferable to use them arranged at intervals (FIG. 6 (b)).

In addition to being installed outside the segment display means as described above, as shown in FIG. 7 , it is also possible to form an extended part in the segment display means to install the magnetic material in this part. In this case, since a magnet having a larger size can be used as compared to installing a magnetic material on the outside of the segment display means as shown in FIG. 6 , it is possible to use a segment display means having higher magnetism, thereby exhibiting high adhesion.

As a specific part of the present invention has been described in detail above, for those of ordinary skill in the art, it is clear that this specific description is only a preferred embodiment, and the scope of the present invention is not limited thereby. will be. Accordingly, it is intended that the substantial scope of the present invention be defined by the appended claims and their equivalents.

100: flat light emitting device
110: second magnetic material
200: ambient light blocking means
300: segment display means
310: first magnetic material
320: insertion part
330: light leakage prevention means

Claims (6)

(a) a flat light emitting device including light diffusing means;
(b) an ambient light blocking means formed to be detachably attached to the light emitting surface of the flat light emitting device and having a hole formed in a portion corresponding to each segment of the 7 segment; and
(c) segment display means, which is manufactured in the same shape as the through hole of the ambient light blocking means, and is detachably attached to each segment position to express 7 segments;
In the number display device for easy day and night identification comprising a,
The segment display means
an insert having the same size as the through hole; and
a light leakage preventing means positioned above the insertion part and formed to be larger than the size of the through hole;
A number display device for easy day and night identification comprising a.
According to claim 1,
The number display device may display a number by attaching the ambient light blocking means and then detaching the segment display means to a portion corresponding to the segment of each number, or detaching the ambient light blocking means, and then attaching the segment of each number A number display device for easy day and night identification, characterized in that the number is displayed by attaching the segment display means to a portion corresponding to the .
delete According to claim 1,
The segment display means is attached so that the insertion part is in contact with the flat light emitting device when the ambient light blocking means is attached, and when the ambient light blocking means is detached, the light leakage preventing means is attached to be in contact with the flat light emitting device A number display device for easy day and night identification, characterized in that.
According to claim 1,
The segment display means is a number display device for easy day and night identification, characterized in that the recessed portion is formed on one side or both sides of the light leakage preventing means.
According to claim 1,
Day and night identification, characterized in that a first magnetic material is installed on the segment display means, and a second magnetic material is installed at a corresponding position of the flat light emitting device, so that the segment display means is attached to the flat light emitting device by magnetism This easy-to-follow number display.

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