KR102136921B1 - Flexible display apparatus attached on outer panel of vehicle - Google Patents

Abstract

Disclosed is a flexible display device attached to a vehicle exterior. The flexible display device includes a micro LED panel including a plurality of micro LED modules disposed adjacent to each other and a clear coating layer disposed on the micro LED panel, each of the plurality of micro LED modules , A plurality of pixels including a plurality of micro LED chips, and one FPCB unit in which the plurality of pixels are arranged in a matrix form on the top, wherein the FPCB unit is attached to the entire surface of the vehicle when attached to the exterior plate Includes attachment surface.

Description

Flexible display device attached to the exterior of a vehicle{FLEXIBLE DISPLAY APPARATUS ATTACHED ON OUTER PANEL OF VEHICLE}

The present invention relates to a flexible display device attached to a vehicle exterior plate, and more specifically, to solve the disadvantages of existing technologies such as attachment or painting/lapping using a magnet to display advertisements or posts on a vehicle. The present invention relates to a flexible display device attached to an exterior plate of a vehicle.

As a conventional method for advertising or posting advertisements or posts on an outer panel of a vehicle, a method using a magnet or a painting or wrapping or adhesive tape has been mainly used. When attached using a magnet, there is a risk of advertisements or posts falling during long-term use or driving, and when painting or wrapping is used, there is a problem that some or all of them are discolored or erased by the external environment. In addition, in the case of painting, wrapping, or adhesive tape, frequent replacement (for example, in a replacement cycle in minutes or seconds) is not easy, and it is impossible to display advertisements or posts in the form of moving pictures or videos.

In addition, to display advertisements or posts in the form of moving images or videos, it may be considered to mount or attach a display device made of LCD, OLED, or LED to the vehicle exterior, but it is also possible to install such a display device in a vehicle. Not only is it not easy, but even when installed, there is a high risk of falling over long periods of use or driving, and realistic difficulties arise when considering a narrow road width or height.

The problem to be solved by the present invention is to solve the problems such as easily falling or discoloration due to the external environment, which is a disadvantage of the method of posting advertisements or posts of advertisements applied to the exterior of a vehicle using attachment, painting or lapping using a conventional magnet. In order to solve this, it is to provide a flexible display device attached to a vehicle outer plate that is surface-attached to a vehicle outer plate.

A vehicle-attached flexible display device according to an aspect of the present invention for solving the above problems, a micro LED panel including a plurality of micro LED modules disposed adjacent to each other, and one disposed on the top of the micro LED panel A clear coating layer, each of the plurality of micro LED modules includes a plurality of pixels including a plurality of micro LED chips and a single FPCB unit in which the plurality of pixels are arranged in a matrix on top, The FPCB unit includes an attachment surface so that the entire surface can be attached when attached to the vehicle outer plate.

According to one embodiment, a part of the lower portion of the clear coating layer is in contact with the FPCB of the plurality of micro LED modules.

According to one embodiment, the clear coating layer reflects UV light.

According to an embodiment, one pixel in the plurality of pixels includes a first micro LED chip, a second micro LED chip, and a third micro LED chip.

According to one embodiment, the first micro LED chip, the second micro LED chip and the third micro LED chip emit light having the same band wavelength.

According to an embodiment, the first micro LED chip is covered with a first wavelength converting material for wavelength conversion to a longer wavelength than light emitted from the first micro LED chip.

According to one embodiment, the third micro LED chip in the one pixel is covered with a light transmitting material.

According to one embodiment, the second micro LED chip is a second wavelength conversion material for wavelength conversion to a shorter wavelength than light that is wavelength-converted by the first wavelength conversion material while being longer wavelength than light emitted from the second micro LED chip. Covered with.

According to an embodiment, the first micro LED chip and the third micro LED chip emit light having a wavelength of the same band, and the second micro LED chip has a longer wavelength than light emitted from the first micro LED chip. Emits light.

According to one embodiment, the first micro LED chip is covered with a first wavelength converting material for wavelength conversion to a longer wavelength than light emitted from the second micro LED chip.

According to one embodiment, the second micro LED chip and the third micro LED chip are covered with a light transmitting material.

According to one embodiment, the vehicle outer plate is at least one of the side, top, rear, and front sides of the vehicle, and the FPCB is attached to at least one of the side, top, rear, and front sides of the vehicle, or a whole region.

The flexible display device for attaching a vehicle outer plate according to another aspect of the present invention for solving the above problems includes an FPCB having an attaching surface so that the entire surface is attachable on the vehicle outer plate, and each includes a plurality of micro LED chips. It includes a plurality of pixels arranged in a matrix form on top of the FPCB, and a clear coating layer disposed on the plurality of pixels, and a part of the bottom of the clear coating layer is in contact with the FPCB.

The present invention provides a flexible display device for attaching a vehicle exterior plate that is surface-attached to a vehicle exterior plate, which is a disadvantage of a method of posting advertisements or posts of advertisements applied to the vehicle exterior plate by using magnet attachment, painting, or lapping. Problems such as discoloration due to the external environment can be solved.

In addition, the present invention implements a flexible display device for attaching a vehicle outer plate in which one pixel is composed of a plurality of micro LED chips and these pixels form a flexible display panel arranged in a matrix form. It can be attached to the display, and is attached to the vehicle's outer plate to have various effects to change the color of the vehicle.

1 is a view for explaining the position of the main parts of the inside of the vehicle and the outside of the vehicle for the vehicle-attached flexible display device according to an embodiment of the present invention,
2 is a block diagram illustrating the concept of a vehicle-attached flexible display device according to an embodiment of the present invention,
3 is a view for explaining a vehicle-attached flexible display device according to an embodiment of the present invention,
4 is a view showing a cross-section of a vehicle-attached flexible display device according to an embodiment of the present invention,
5 to 8 are views for explaining examples of applying a vehicle-attached flexible display device according to an embodiment of the present invention to various positions of a vehicle outer plate,
9 is a view showing an example of a cross-section in a state in which the vehicle-attached flexible display device according to an embodiment of the present invention is attached to the vehicle outer plate 10,
10 and 11 are views showing examples of cross-sections of a flexible display device attached to a vehicle according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that the accompanying drawings and embodiments are simplified and limited in order to help those skilled in the art to understand the present invention.

1 is a view for explaining the positions of the main parts of the exterior of the vehicle and the inside of the vehicle to which the vehicle-attached flexible display device according to an embodiment of the present invention is applied.

Referring to FIG. 1, first, as shown in (a), outside the vehicle 1, reference numeral 10a is an outer surface of the front or rear door of the vehicle and is referred to as the side of the vehicle in this specification. Reference numeral 10b is an outer surface of the roof panel and is referred to herein as the upper surface of the vehicle. Reference numeral 10c is the outer surface of the bonnet and is referred to as the upper surface of the vehicle together with the outer surface of the roof panel in this specification. Reference numeral 10d is a trunk outer surface or a rear panel outer surface and is referred to as a rear surface of the vehicle in this specification. Reference numeral 10e is a front panel outer surface and is referred to herein as the front surface of the vehicle. In the vehicle-mounted flexible display device of the present invention, the FPCB (see 110 in FIG. 2) is provided on the side 10a of the vehicle, the top surfaces 10b and 10c of the vehicle, the rear 10d of the vehicle, and the front 10e of the vehicle. Can be attached. In addition, it is not limited to the above position, and may be applied to other positions of other vehicle exterior plates, for example, front glass, rear glass, or side glass.

Next, as shown in (b), 10f is the door trim, 10g is the dashboard, 10h is the center fascia, 10i is the steering wheel, 10j is the sun visor, and 10k is the console box inside the vehicle. . As described below, in the vehicle-attached flexible display device of the present invention, the control unit (see 140 in FIG. 2) may be installed in any one of them.

2 is a block diagram illustrating the concept of a vehicle-attached flexible display device according to an embodiment of the present invention.

Referring to FIG. 2, a vehicle-attached flexible display device according to an exemplary embodiment of the present invention includes a plurality of pixels (micro in FIG. 2) including a flexible printed circuit board (FPCB) 110 and a plurality of micro LED chips. LED array 120) and a clear coating layer 130. In addition, the vehicle-mounted flexible display device further includes a control unit 140. In this specification, the FPCB 110 and the micro LED array 120 mounted thereon are also referred to as a micro LED panel, and in some cases, a clear coating layer 130 is also included as a micro LED panel.

The entire surface of the FPCB 110 is attached to the vehicle outer plates 10a to 10e; collectively indicated as 10. A micro LED driving circuit unit (not shown) is disposed on the FPCB 110, and the micro LED driving circuit unit individually drives the plurality of micro LED chips 120. Since the FPCB 110 is flexible, when the entire surface is attached to the vehicle outer plate 10, it is attached along the profile of the vehicle outer plate. Therefore, there is an advantage that the possibility of falling off from the vehicle outer plate during long-term use or driving is significantly reduced by being in close contact with the vehicle outer plate.

The plurality of micro LED chips 120 arranged in a matrix form and forming a micro LED array are connected to be individually driven by the micro LED driving circuit unit. The size of each of the micro LED chips 120 is an ultra-small LED chip whose length of one side is generally in the range of 10 to 100um. For full color realization, for example, three micro LED chips may be grouped to form one pixel (PX and R, G, B in FIG. 3).

The clear coating layer 130 is a layer for reflecting external light such as natural light or lighting, and is disposed on the micro LED chips 120. In particular, the clear coating layer reflects UV (Ultra Violet) light, and when coated with a material having a small refractive index, the thickness may be approximately 30-50 μm.

The control unit 140 controls the micro LED driving circuit unit disposed on the FPCB 110 to individually drive the micro LED chips. The controller 140 is a part for receiving an image or an image source to be displayed from the outside and providing it to the display panel side, that is, the FPCB 110 and the micro LED chips 120, and for controlling on/off of the display panel. Part. The control unit 140 may be installed at a certain position inside the vehicle for easy access by the driver or passenger. For example, the control unit 140, as shown in Figure 1 (b), the door trim (10f), the dashboard (10g), the center fascia (10h), the steering wheel (10i), sun visor (10j) and It can be installed in any one of the console box (10k), but is not limited to this internal position.

3 is a view for explaining a vehicle-attached flexible display device according to an embodiment of the present invention.

Referring to FIG. 3, a vehicle-attached flexible display device according to an exemplary embodiment of the present invention includes a micro LED panel ((b) of FIG. 3) and one clear coating layer 130. As shown in (a), one micro LED module is configured by arranging a plurality of pixels PX in a matrix form on top of one FPCB unit 110a. Each of the plurality of pixels PX includes a plurality of micro LED chips R, G, and B. A plurality of micro LED modules (represented by N in (a)) are arranged adjacent to each other to form a micro LED panel as shown in (b). Then, as shown in (c), by placing one clear coating layer 130 on the top of the micro LED panel, a vehicle-attached flexible display device is made. That is, the vehicle-attached flexible display device of the present invention includes a clear coating layer 130 and a micro LED panel, the micro LED panel includes a plurality of micro LED modules, each of the plurality of micro LED modules, It includes a plurality of FPCB units (110a, 110b, 110c, 110d) and micro LED arrays (120a, 120b, 120c, 120d) corresponding to each of them. Each of the FPCB units 110 includes an attachment surface (see 111 of FIG. 10 or 11) so that the entire surface can be attached when attached to the vehicle outer plate. As described above, when attaching a micro LED panel composed of a plurality of micro LED modules (one micro LED module includes one FPCB unit and a corresponding micro LED array) to a vehicle, the plurality of micro LED modules are assembled. Since it is attached to the vehicle outer plate and one clear coating layer is attached thereon, there is an advantage that it can be attached to various shapes of the vehicle outer plate.

Of course, the FPCB 110 having an attachment surface so that the entire surface is attachable on the vehicle exterior plate, the micro LED array 120 in which a plurality of pixels are arranged on the FPCB 110 in a matrix form, and disposed thereon The clear coating layer 130 may be attached to the vehicle outer plate by forming a single structure.

When the clear coating layer 130 is disposed on the upper portion of the micro LED array 120, a part of the lower portion of the clear coating layer 130 is brought into contact with the FPCB 110, thereby increasing the contact area of the clear coating layer as a whole of the flexible display device. , It is possible to prevent the pixels, that is, the micro LED chips constituting the pixels from deviating from the correct position. This will be described with reference to FIG. 4.

4 is a view showing a cross-section of a vehicle-attached flexible display device according to an embodiment of the present invention.

Referring to FIG. 4, a part of the lower portion of the clear coating layer 130 is in contact with the FPCB 110. Reference numeral 135 is a part of the lower portion of the clear coating layer 130 and the FPCB 110 contacting, thereby widening the contact area of the clear coating layer 130, and leaving the micro LED chips mounted on the FPCB 110. It is possible to prevent.

5 to 8 are views for explaining examples in which a display panel is applied to various positions of a vehicle exterior plate in a vehicle-attached flexible display device according to an embodiment of the present invention. 5 to 8, the vehicle-attached flexible display device of the present invention may be attached to any one of a side, top, and rear side of a vehicle. Also, although not shown, it may be attached to the front of the vehicle. In addition, the vehicle may be attached to at least one portion of the side, top, rear, and front of the vehicle, or the entire region. As mentioned above, when the FPCB 110 is attached to a partial area or the entire area of at least one of the side, top, rear and front surfaces of the vehicle, the entire surface of the FPCB 110 is attached to correspond to the contour of the area. do.

First, FIG. 5 is a case applied to the side 10a of the vehicle, and the flexible display device 100a is attached to the side 10a of the vehicle among the vehicle outer plates as illustrated, specifically, the FPCB 110 (FIG. 2 ). ), the entire surface of the vehicle is attached to the side 10a of the vehicle, so that the flexible display device 100a is attached to and maintained on the side 10a of the vehicle. In FIG. 5, the flexible display device 100a is illustrated in only a portion of the side 10a of the vehicle, but the entire side of the vehicle, that is, the outer area of the front door except the front door handle, and the rear door except the rear door handle It may be attached to the outer surface area, and further, it may be further attached to the front fender and the rear fender.

FIG. 6 is a case where the upper surfaces 10b and 10c of the vehicle are applied, and the flexible display devices 100b and 100c are attached to the upper surfaces 10b and 10c of the vehicle, as shown, specifically, FPCB ( 110; the entire surface of FIG. 2) is attached to the upper surfaces 10b and 10c of the vehicle, so that the flexible display devices 100b and 100c are attached and maintained to the upper surfaces 10b and 10c of the vehicle. In addition, in FIG. 6, flexible display devices 100b and 100c are attached to only a portion of the top surfaces 10b and 10c of the vehicle, but as illustrated in FIG. 8, the top surfaces 10b and 10c of the vehicle are illustrated. It can also be attached to the entire area.

7 is applied to the rear 10d of the vehicle, the flexible display device 100d is attached to the rear 10e of the vehicle as shown in the vehicle outer plate, specifically, the FPCB 110 (FIG. 2) Since the entire surface is attached to the rear 10d of the vehicle, the flexible display device 100d is attached and maintained to the rear 10d of the vehicle. In addition, in FIG. 7, the flexible display device 100d is attached to only a portion of the rear 10d of the vehicle, but may be further attached to the remaining region of the vehicle except for the license plate.

9 is a view showing a cross-section in a state in which the vehicle-attached flexible display device according to an embodiment of the present invention is attached to the vehicle outer plate 10, and FIGS. 10 and 11 are vehicles according to an embodiment of the present invention It is a view showing examples of a cross section of the attached flexible display device.

Referring first to FIG. 9, the vehicle-attached flexible display device of the present invention is electrically connected to an FPCB 110 attached to a vehicle outer plate 10 and a micro LED driving circuit unit (not shown) on the FPCB 110 and a micro LED. It includes a plurality of pixels (PX) constituting the array and a clear coating layer 130 disposed on top of the pixels (PX). As described above, the plurality of pixels PX includes a plurality of micro LED chips R, G, and B.

One pixel PX includes a first micro LED chip R, a second micro LED chip G, and a third micro LED chip B. As such, a method of forming one pixel PX with three micro LED chips R, G, and B is illustrated in FIGS. 10 and 11.

Referring to FIG. 10, the first micro LED chip R, the second micro LED chip G, and the third micro LED chip B in one pixel PX emit light having the same band wavelength. It can be a chip. That is, the first micro LED chip R, the second micro LED chip G, and the third micro LED chip B may all be micro LED chips emitting blue light. Then, the first micro LED chip R in one pixel PX is covered with the first wavelength converting material F1. The first wavelength converting material F1 is a material for converting wavelength to a longer wavelength than light emitted from the first micro LED chip R. Further, the second micro LED chip G in one pixel PX is covered with the second wavelength converting material F2. The second wavelength converting material F2 is a material for converting wavelengths to a shorter wavelength than light that is wavelength-converted by the first wavelength converting material F1 while being longer wavelength than light emitted from the second micro LED chip G. Further, the third micro LED chip B in one pixel PX is covered with a light transmitting material T1. The light transmitting material T1 is a material that transmits light emitted from the third micro LED chip B without wavelength conversion. Here, considering the relationship with the clear coating layer 130, the first wavelength conversion material (F1) is located between the first micro LED chip (R) and the clear coating layer 130, the second wavelength conversion material (F2) Is located between the second micro LED chip (G) and the clear coating layer 130, and the light transmitting material (T1) is located between the third micro LED chip (B) and the clear coating layer (130). For example, the first wavelength conversion material (F1) is a material for wavelength conversion of blue light emitted from the first micro LED chip (R) to red light, and the second wavelength conversion material (F2) is a second micro LED chip (G) It may be a material that wavelength-converts blue light emitted from red light.

Referring to FIG. 11, the first micro LED chip R and the third micro LED chip B in one pixel PX emit light having a wavelength in the same band, and the second micro LED chip has a first It may be configured to emit light having a longer wavelength than light emitted from the micro LED chip R. At this time, the first micro LED chip R in one pixel PX is covered with the first wavelength converting material F1, and the second micro LED chip G and the third micro LED chip B are optical. It is covered with a permeable material (T1). The first wavelength conversion material (F1) is a material for wavelength conversion of light emitted from the first micro LED chip (R), but wavelength conversion to a longer wavelength than light emitted from the second micro LED chip (G). For example, the first micro LED chip (R) and the third micro LED chip (B) are chips that emit blue light, and the second micro LED chip (G) is a chip that emits green light, and the first wavelength converting material (F1) is a material for wavelength conversion of blue light into red light.

Here, considering the relationship with the clear coating layer 130, the first wavelength conversion material is located between the first micro LED chip (R) and the clear coating layer 130, the light transmitting material, the second micro LED chip (G ) And the clear coating layer 130, and between the third micro LED chip B and the clear coating layer 130.

In addition, as shown in FIGS. 10 and 11, one surface of the FPCB 110, that is, the attachment surface 111 so that the entire surface of the FPCB corresponding to the contour of the vehicle outer surface can be attached.

In general, the overall thickness of the vehicle outer plate is generally 0.7mm to 0.8mm, and a portion that is directly impacted by the road surface, for example, a thickness of about 2.3mm is used for the portion where the shock absorber is mounted on the vehicle body. As a complementary iron plate for supplementing strength, small pieces of iron plate of about 1.2 to 1.6 mm are composed of two or three layers overlapped by welding. In the vehicle outer plate attachable flexible display device of the present invention, the vehicle outer plate 10 is manufactured by taking a mold with only a large sized iron plate, except for a small piece of iron plate, and then attaching a display panel on the produced vehicle outer plate. To produce.

In the above, the flexible display device attached to the vehicle outer plate of the present invention has been described, but it should be noted that in the above description, not all embodiments of the present invention are entirely covered, and the scope of the invention is defined by the following claims. .

110: FPCB
110a, 110b, 110c, 110d: FPCB unit
120a ~ 120d, 120: micro LED array or micro LED chips
130: clear coating layer 140: control unit

Claims (20)

A micro LED panel including a plurality of micro LED modules; And
It includes a clear coating layer formed to be separate from the micro LED panel and attached to cover the whole of the plurality of micro LED modules in a state where the plurality of micro LED modules are attached to the vehicle outer plate so as to be adjacent to each other.
Each of the plurality of micro LED modules,
A plurality of pixels including a plurality of micro LED chips, and a plurality of pixels including one FPCB unit arranged in a matrix form on top, the FPCB unit is attached to the entire surface when attaching to the vehicle exterior plate Contains cotton,
The one clear coating layer is in contact with the plurality of pixels on the top of the plurality of pixels, characterized in that reflecting natural light and external light, flexible display device attached to the vehicle exterior. The vehicle according to claim 1, characterized in that a part of the lower portion of the one clear coating layer contacts the FPCB unit of the plurality of micro LED modules so as to increase the contact area between the one clear coating layer and the micro LED panel. Flexible display device with external plate attachment. The method according to claim 1, One pixel in the plurality of pixels, characterized in that it comprises a first micro LED chip, a second micro LED chip and a third micro LED chip, flexible display device attached to the vehicle exterior. The method according to claim 3, The first micro LED chip, the second micro LED chip and the third micro LED chip is characterized in that it emits light having a wavelength of the same band, the flexible display device attached to the vehicle exterior. The flexible display device according to claim 4, wherein the first micro LED chip is covered with a first wavelength converting material for wavelength conversion to a longer wavelength than light emitted from the first micro LED chip. The flexible display device according to claim 5, wherein the third micro LED chip in the one pixel is covered with a light transmitting material. The method according to claim 5, wherein the second micro LED chip is a second wavelength conversion material for wavelength conversion to a shorter wavelength than light that is wavelength-converted by the first wavelength conversion material while being longer wavelength than light emitted from the second micro LED chip. The flexible display device attached to the vehicle outer plate, characterized in that covered. The method according to claim 5, The first micro LED chip and the third micro LED chip emits light having a wavelength in the same band, and the second micro LED chip emits light having a longer wavelength than the light emitted from the first micro LED chip. It is characterized in that it emits light, a flexible display device attached to the vehicle outer plate. The flexible display device according to claim 8, wherein the first micro LED chip is covered with a first wavelength conversion material for wavelength conversion to a longer wavelength than light emitted from the second micro LED chip. delete delete delete delete delete delete delete delete delete delete delete

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