KR102370232B1 - Light emitting apparatus - Google Patents

Abstract

The present invention relates to a light emitting display device, and more particularly, to a light emitting display device that displays an emblem or the like that can be identified even at night.
A light emitting display device according to an embodiment of the present invention includes a display unit including a light transmitting unit; a light source unit including a plurality of light sources irradiating light to the display unit; and a barrier rib portion positioned between the plurality of light sources and including at least one barrier rib that blocks a portion of the light irradiated to the light transmitting unit, wherein the at least one barrier rib extends from the light source unit to the display unit without contacting it can be

Description

Light emitting apparatus {Light emitting apparatus}

The present invention relates to a light emitting display device, and more particularly, to a light emitting display device that displays an emblem that can be identified even at night.

An emblem is a mark that is shaped like a figure, letter, symbol, or a combination of these to represent the symbol or image of a company or organization. It is widely used not only to display, but also to advertise the company or product.

In particular, by attaching a unique emblem indicating the name or manufacturer of the vehicle to the rear or side of the vehicle, various symbols according to the company image or vehicle type can be highlighted.

Recently, these emblems have gone beyond simply indicating the source of products such as vehicles, and the aesthetics that appear in harmony with the exterior design of the vehicle or the aesthetics of the emblem's own form are being emphasized. A method of coupling the light source unit to the rear surface of the light transmitting unit has also been proposed.

In the light emitting display device for displaying an emblem or the like as described above, there is a need to invent methods that can provide a uniformly lit image and provide a visually aesthetic feeling.

Republic of Korea Patent Publication No. 10-2016-0136900 (2016.11.30.)

SUMMARY OF THE INVENTION An object of the present invention is to provide a light emitting display device that generates images that are sequentially lit without forming a dark zone.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a light emitting display device according to an embodiment of the present invention includes a display unit including a light transmitting unit; a light source unit including a plurality of light sources irradiating light to the display unit; and a barrier rib portion positioned between the plurality of light sources and including at least one barrier rib that blocks a portion of the light irradiated to the light transmitting unit, wherein the at least one barrier rib extends from the light source unit to the display unit without being in contact can be

Here, the light source unit may further include a driving unit for controlling the individual turn-off of the plurality of light sources.

Also, the at least one partition wall may extend to form a height of less than half the height of a space formed between the display unit and the light source unit.

Here, when there are a plurality of the partition walls, each of the plurality of partition walls may have different heights.

Here, each of the plurality of barrier ribs may gradually increase in height in a direction in which the plurality of light sources are sequentially turned on.

In addition, the plurality of barrier ribs may have their respective heights gradually lower in a direction in which the plurality of light sources are sequentially turned on.

Meanwhile, the at least one barrier rib may be tapered to have a narrow width in a direction in which light is irradiated from the light source.

The display unit may further include a bezel part positioned between the display part and the light source part and formed along at least an outer periphery of the light-transmitting part, and the partition wall part may be formed at a position of the bezel part facing the light-transmitting part of the display part.

The light source unit may further include a diffusion lens unit positioned between the display unit and the light source unit, and the diffusion lens unit may diffuse the light incident from the light source unit to form a uniformly lit image on the display unit.

Here, the diffusion lens unit includes a first lens and a second lens, the first lens includes a lenticular lens for diffusing light in a first direction, the second lens is the light diffused from the first lens It may include a lenticular lens that diffuses in a second direction perpendicular to the first direction.

Here, a plurality of optics for scattering incident light may be applied to at least a portion of the display unit and the diffusion lens unit.

Meanwhile, a half-mirror layer may be applied to at least a portion of the display unit.

Other specific details of the invention are included in the detailed description and drawings.

According to the light emitting display device of the present invention as described above, there are one or more of the following effects.

It is possible to provide a light emitting display device that generates images that are sequentially lit without forming a dark zone.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view illustrating an exterior of a light emitting display device according to an exemplary embodiment of the present invention.
2 is an exploded perspective view of a light emitting display device according to an exemplary embodiment of the present invention.
3 is a view showing a diffusion lens unit according to an embodiment of the present invention.
4 is a perspective view of a bezel part including a partition wall part according to an embodiment of the present invention.
5 is a longitudinal cross-sectional view of a light emitting display device according to an embodiment of the present invention.
6 is a diagram illustrating an example in which dark bands are generated on images that are sequentially lit.
7 is a diagram illustrating an example of a process in which sequentially lit images are formed on a light emitting display device according to an exemplary embodiment of the present invention.
8 and 9 are views illustrating a plurality of barrier ribs for forming a sequentially lit emblem image according to an embodiment of the present invention.
FIG. 10 is a view illustrating a partition wall unit including a plurality of partition walls that are formed to be narrow and tapered in a direction in which light is irradiated according to an embodiment of the present invention.
11 is a diagram illustrating an example of a scattering optic.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Accordingly, in some embodiments, well-known process steps, well-known structures, and well-known techniques have not been specifically described in order to avoid obscuring the present invention.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, includes and/or comprising refers to the presence or addition of one or more other components, steps, operations and/or elements other than the recited elements, steps, acts and/or elements. It is used in the sense of not being excluded. And, “and/or” includes each and every combination of one or more of the recited items.

Further, the embodiments described herein will be described with reference to cross-sectional and/or schematic diagrams that are ideal illustrative views of the present invention. Accordingly, the shape of the illustrative drawing may be modified due to manufacturing technology and/or tolerance. Accordingly, the embodiments of the present invention are not limited to the specific form shown, but also include changes in the form generated according to the manufacturing process. In addition, in each of the drawings shown in the present invention, each component may be enlarged or reduced to some extent in consideration of convenience of description. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings for explaining a light emitting display device according to embodiments of the present invention.

1 is a perspective view illustrating an exterior of a light emitting display device 1 according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a light emitting display device 1 according to an embodiment of the present invention.

1 and 2 , a light emitting display device 1 according to an embodiment of the present invention includes a display unit 100 , a diffusion lens unit 200 , a bezel unit 300 , a light source unit 400 , and a housing 500 . It may be composed of

The display unit 100 may be formed in a plane or three-dimensional form, and may be composed of a combination of the transmissive unit 110 and the non-transmissive unit or semi-transmissive unit to display an emblem, etc. to be displayed by the light emitting display device 1 according to the present invention. there is.

The light-transmitting part 110 of the display unit 100 is formed of a material such as a lens, glass, plastic, etc., through which light emitted from the light source unit 400 forward can be transmitted, and the non-transmissive part is formed of a material through which light cannot be transmitted. or may be coated with paint or deposited to block light, and a semi-transmissive portion that transmits only a portion of light may be applied depending on the design and shape of the displayed emblem.

Here, the forward direction is a direction in which light is emitted from the light emitting display device 1 of the present invention, and the direction indicated by the forward direction may vary depending on the location or direction in which the light emitting display device 1 of the present invention is installed.

The light source unit 400 may include a plurality of light sources 410 , a heat dissipation unit 420 , and a driving unit 430 . In the embodiment of the present invention, a light emitting diode (LED) semiconductor light emitting device is used as the light source 410 , but is not limited thereto, and a laser diode (LD) or bulb type lamp may be used as the light source 410 . As the bulb-type lamp, a halogen lamp, a High Intendity Dischage (HID) lamp, or the like may be used.

The plurality of light sources 410 are disposed to irradiate light toward the display unit 100 , and the heat dissipation unit 420 functions to radiate heat generated from the light source 410 , and increases heat dissipation efficiency by increasing the heat dissipation area. It may include a heat dissipation fin for

The driving unit 430 of the light source unit 400 serves to control individual turn-off of the plurality of light sources 410 . The order and duration in which the plurality of light sources 410 included in the light emitting display device 1 according to the embodiment of the present invention are turned on or off, respectively, may be controlled through the driver 430 .

3 is a diagram illustrating a diffusion lens unit 200 according to an embodiment of the present invention.

Referring to the exploded perspective view of FIG. 2 , the diffusion lens unit 200 is positioned between the display unit 100 and the light source unit 400 , and the light emitting display device 1 according to the embodiment of the present invention is an emblem having a uniformly lit image. It serves to diffuse the light generated from the light source unit 400 positioned behind the light source unit 400 to output the light to the display unit 100 to display the light.

Specifically, referring to FIG. 3 , the diffusion lens unit 200 according to an embodiment of the present invention is positioned adjacent to the display unit 100 from which light is finally emitted, and a first lens 210 and a second lens 220 are provided. It may be composed of The first lens 210 includes a plurality of lenticular lenses L extending in length in a first direction, and the second lens 220 includes a plurality of lenticular lenses L extending in length in a second direction perpendicular to the first direction. of the lenticular lens (L).

The lenticular lens L has a semicircular cross section, the length thereof may extend in one direction, and has a shape in which a cylinder is cut in half along the length direction as a whole. The light emitted from the lenticular lens L forms a beam pattern in which the light is diffused in parallel with the longitudinal direction in which the lenticular lens L extends.

Accordingly, in the diffusion lens unit 200 according to the embodiment of the present invention, the first lens 210 diffuses light in a first direction, and the second lens 220 emits light from the first lens 210 . By diffusing again in the second direction, the emblem displayed on the display unit 100 may form a uniform lighting image as a whole.

The entrance and exit surfaces of the first lens 210 and the second lens 220 of the diffusion lens unit 200 according to an embodiment of the present invention are arranged side by side to face each other, and the first lens 210 and the second lens ( 220) has been described as an example that the light is vertically crossed and spread by each, but the present invention is not limited thereto, and the lenticular lens L included in the first lens 210 and the second lens 220 has a predetermined angle. It may form and intersect to diffuse the light.

The bezel unit 300 may be positioned between the display unit 100 and the light source unit 400 , and at least a portion of the bezel unit 300 may form an edge surrounding the plurality of light sources 410 included in the light source unit 400 . Also, the bezel part 300 may be formed along the outer periphery of the light-transmitting part 110 included in the display part 100 .

The bezel unit 300 is formed along the outer periphery of the light transmitting unit 110 and includes an edge surrounding the plurality of light sources 410 , so that light generated from the light source unit 400 is transmitted to the light transmitting unit 110 of the display unit 100 . ), it has an effect of preventing light loss by preventing it from leaking in unnecessary directions.

In addition, one end of the bezel unit 300 is in contact with the light source unit 400 , and the other end serves to support the diffusion lens unit 200 , and forms a predetermined space between the light source unit 400 and the diffusion lens unit 200 . A predetermined light path for the light generated from the light source unit 400 to be incident on the diffusion lens unit 200 may be formed.

Meanwhile, the bezel part 300 according to the embodiment of the present invention may include a partition wall part 350 . 4 is a perspective view of the bezel part 300 including the partition wall part 350 according to an embodiment of the present invention. Referring to FIG. 4 , the barrier rib 350 may include at least one barrier rib positioned between the plurality of light sources 410 to block a portion of the light irradiated in the direction of the light transmitting unit 110 .

In the barrier rib part 350 according to an embodiment of the present invention, as the driving part 430 sequentially controls the individual turning on and off of the plurality of light sources 410 , the emblem displayed on the light transmitting part 110 of the display part 100 , etc. It is a component included to generate an animation effect on the lit image of

5 is a longitudinal cross-sectional view of a light emitting display device 1 according to an embodiment of the present invention.

Specifically, the barrier rib is formed at a position facing the light-transmitting part 110 of the display part 100 among the bezel part 300 , one end is in contact with the light source part 400 , and the other end is from the light source part 400 to the display part 100 direction. It can be extended to form a non-contact height.

Referring to FIG. 5 , in the light emitting display device 1 according to the embodiment of the present invention, a predetermined space is formed between the display unit 100 and the light source unit 400 . Specifically, if the height of the space formed between the diffusion lens unit 200 and the light source unit 400 is H, the height h of the barrier rib is formed at a height that is in contact with the diffusion lens unit 200 by H or the display unit and the When formed to a height exceeding half of the height H of the space formed between the light source units, the dark band D may be formed at a location where the partition wall is formed among the light transmitting units 110 that form a lit image such as an emblem. .

As a result , as shown in FIG. 6 , there is a problem in that a dark zone D is formed and an unnatural animation effect with poor aesthetics is generated.

In order to solve the above problems, the height h of the barrier rib of the light emitting display device 1 according to the embodiment of the present invention is 0.5H, which is less than half the height H of the space formed between the display unit 100 and the light source unit 400 . It may be extended to form the following height.

As the driving unit 430 according to an embodiment of the present invention sequentially controls the individual turning on and off of the plurality of light sources 410, the light-transmitting unit 110 is formed by the barrier rib part 350 having a height of 0.5H or less. A part of the irradiated light is blocked and a part is irradiated as it is, so as shown in FIG. 7 , a natural animation effect in which the dark zone D is not formed in the sequentially lit image may be generated.

Also, when the light emitting display device 1 according to an embodiment of the present invention includes a plurality of barrier ribs, each of the plurality of barrier ribs may have different heights. 8 and 9 are views illustrating a plurality of barrier ribs for forming a sequentially lit emblem image according to an embodiment of the present invention.

8 and 9 , the barrier rib part 350 of the light emitting display device 1 according to the embodiment of the present invention may include first to fourth barrier ribs 351 , 352 , 353 and 354 . there is. The first to fourth barrier ribs 351 , 352 , 353 , and 354 are positioned between the plurality of light sources 410 , and the height of each of the plurality of barrier ribs gradually increases in the direction in which the plurality of light sources 410 are sequentially turned on. It can be formed lower.

Referring to FIG. 8 , when the plurality of light sources 410 are sequentially lit from the first barrier rib 351 to the fourth barrier rib 354 , the second barrier rib 352 is formed higher than the first barrier rib 351 . The third barrier rib 353 may be formed higher than the second barrier rib 352 , and the fourth barrier rib 354 may be formed higher than the third barrier rib 353 ( h1 < h2 < h3 < h4 ).

As described above, when the height of each of the plurality of barrier ribs increases in the direction in which the plurality of light sources 410 are sequentially turned on, the light transmitting part 110 is not blocked from the light source 410 located between the barrier ribs by the barrier ribs. ), the range of the light irradiation angle becomes narrower (?1>?2>?3).

Accordingly, when forming an emblem image that is sequentially lit, the range of lit images that are irradiated from the adjacent light source 410 to the light projection unit 110 and overlap each other becomes narrower (A1>A2), and a gradation effect may occur.

Also, referring to FIG. 9 , when the plurality of light sources 410 are sequentially lit from the first barrier rib 351 to the fourth barrier rib 354 , the second barrier rib 352 is lower than the first barrier rib 351 . The third barrier rib 353 may be lower than the second barrier rib 352 , and the fourth barrier rib 354 may be lower than the third barrier rib 353 ( h1 > h2 > h3 > h4 ).

As described above, when the height of each of the plurality of barrier ribs is formed to gradually decrease in the direction in which the plurality of light sources 410 are sequentially turned on, the light transmitting part ( 110), the range of the light irradiation angle gradually widens (?1<?2<?3).

Accordingly, when forming an emblem image that is sequentially lit, a range of overlapping each other by being irradiated from an adjacent light source 410 to the light transmitting unit 110 is gradually widened (A1 < A2), and a gradation effect may occur.

Although the case where the plurality of light sources 410 included in the light emitting display device 1 according to the embodiment of the present invention are sequentially turned on has been described as an example, the light sources 410 are turned off even when the plurality of light sources 410 are turned off in sequence. The height of the barrier ribs formed along the direction may be increased or decreased, or the height of each of the plurality of barrier ribs may be different from each other according to an animation effect to be implemented without being limited thereto.

In addition, in the embodiment of the present invention, a case in which a plurality of barrier ribs are positioned by dividing the plurality of light sources 410 by the same interval has been described as an example, but the positions of each of the plurality of light sources 410 or the spacing between the barrier ribs dividing the light sources 410 are It is not limited thereto.

Meanwhile, the barrier rib included in the light emitting display device 1 according to the embodiment of the present invention may be formed to be tapered in a direction in which light is emitted from the light source 410 .

FIG. 10 is a diagram illustrating a partition wall part 350 including a plurality of partition walls that are formed to be narrow and tapered in a direction to which light is irradiated according to an embodiment of the present invention.

Referring to FIG. 10 , the barrier rib according to an embodiment of the present invention is formed such that its width is tapered in a direction in which light is emitted from the light source 410, thereby irradiating a wider range of light to the transmitting portion than otherwise. Angles can be formed (β>?).

Therefore, as shown in FIG. 10, when the partition wall is formed to be inclined so that the width of the barrier rib is gradually narrowed in the direction in which the light is irradiated, the light source 410 provides a sequential lighting gradation image with improved visual aesthetics in the sequential lighting direction. can

In addition, since the width of the barrier rib is formed to be narrow in the direction in which light is irradiated, the surface facing the display unit 100 among each of the plurality of barrier ribs is finally formed to be narrower, and the formation of the dark zone D can be prevented. there is an effect

On the other hand, the display unit 100 is coupled to the housing 500 in front and rear, and accommodates the diffusion lens unit 200 , the bezel unit 300 , and the light source unit 400 therein. It is possible to form the appearance of (1) and prevent the inflow of other foreign substances from the outside.

To this end, the display unit 100 and the housing 500 may be respectively formed with corresponding coupling protrusions and coupling grooves on the surfaces facing each other, may be screwed together, and is not limited thereto as long as the configuration can ensure watertightness.

Meanwhile, a plurality of scattering optics 130 for scattering light emitted from the light source unit 400 may be applied to at least a portion of the display unit 100 or the diffusion lens unit 200 . 11 is a diagram illustrating an example of the scattering optic 130 .

Referring to FIG. 11 , a plurality of scattering optics 130 protruding outward or recessed inwardly may be applied to the incident surface or the emission surface of the display unit 100 or the diffusion lens unit 100 , and may be protruded or depressed. A plurality of scattering optics 130 to be formed may be combined and formed.

The depth or shape of each of the plurality of scattering optics 130 protruding or recessed may vary, and at least one of the light-transmitting unit 110 of the display unit 100 or the incident surface and the emission surface of the diffusion lens unit 200 is above the As the plurality of scattering optics 130 for scattering light are formed in an atypical pattern, the light diffused from the diffusion pattern unit is scattered and scattered in various directions, and the light-transmitting unit 110 of the display unit 100 depends on the viewing direction of the observer. An emblem formed by the glittering effect may be generated.

In addition, a half-mirror layer may be applied to the display unit 100 . The half-mirror layer is a mirror structure configured to reflect some of the incident light and transmit some of the light. In the area to which the half-mirror layer is applied, particles such as chromium, aluminum, and metal oxide are deposited to form a layer that reflects and blocks light like a mirror. and transmits only a portion of the light incident to the region to which the half-mirror layer is applied.

As a result, there is an effect of transmitting only a portion of the light irradiated from the light source unit 400 to the area to which the half-mirror layer is applied. can be

Therefore, the region of the display unit 100 to which the half-mirror layer is applied forms a metal texture that reflects light during the daytime when the light source unit 400 is turned off, and is irradiated from the light source unit 400 during the night and applied to the diffusion lens unit 200. A lit image can be simultaneously formed by transmitting the diffused light.

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention. do.

1: light emitting display device
100: display
110: light-transmitting unit
200: diffusion lens unit
300: bezel part
350: bulkhead
351, 352, 353, 354: bulkhead
400: light source unit
410: light source

Claims (12)

a display unit comprising a combination of a translucent unit and a non-transmissive unit or a semi-transmissive unit for displaying the emblem of the vehicle to form a design and shape corresponding to the emblem;
a light source unit including a plurality of light sources irradiating light to the display unit; and
Including; and
The at least one barrier rib extends from the light source unit to the display unit so as not to be in contact with each other;
The at least one partition wall,
A light emitting display device extending to form a height of less than half the height of a space formed between the display unit and the light source unit. The method of claim 1,
The light emitting display device further comprising a driving unit for controlling individual turning on and off of the plurality of light sources. delete The method of claim 1,
When the partition wall is plural,
A light emitting display device in which each of the plurality of barrier ribs is formed to have different heights. 5. The method of claim 4,
The plurality of partition walls,
A light emitting display device in which a height of each of the plurality of light sources increases in a direction in which the light sources are sequentially turned on. 5. The method of claim 4,
The plurality of partition walls,
A light emitting display device in which a height of each of the plurality of light sources gradually decreases in a direction in which the plurality of light sources are sequentially turned on. The method of claim 1,
The at least one barrier rib is tapered to become narrower in a direction in which light is emitted from the light source. The method of claim 1,
and a bezel part positioned between the display part and the light source part and formed along at least an outer periphery of the light-transmitting part,
The barrier rib part is formed at a position of the bezel part facing the light transmitting part of the display part. The method of claim 1,
Further comprising a diffusion lens unit positioned between the display unit and the light source unit,
The diffusion lens unit diffuses the light incident from the light source unit to form a uniformly lit image on the display unit. 10. The method of claim 9,
The diffusion lens unit includes a first lens and a second lens,
The first lens includes a lenticular lens for diffusing light in a first direction,
and the second lens includes a lenticular lens for diffusing the light diffused from the first lens in a second direction perpendicular to the first direction. 11. The method of claim 10,
A plurality of optics for scattering incident light are applied to at least a portion of the display unit and the diffusion lens unit. The method of claim 1,
A light emitting display device to which a half-mirror layer is applied to at least a portion of the display unit.

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