KR20080067751A - A signboard with film and hand writing - Google Patents

Abstract

A signboard with film and hand writings is provided to activate a luminous function of a film printed or written with ink including fluorescent material even when the film is separated from a light guide plate. A signboard with film and hand writings includes a front light guide plate(20), an ultraviolet light source(10), and a film(30). Character or picture part is written by hand on the front light guide plate with ink containing fluorescent material. The ultraviolet light source is installed on a side surface of the front light guide plate to illuminate the hand-written character or picture on the front light guide plate. The film is separated from the rear part of the front light guide plate to record the character or the pictures with ink. Another light source(12) illuminates character or picture part(32) recorded on the film with light incident to the film in a right angle direction.

Description

Surface handwritten film insert board {A signboard with film and hand writing}

1 is a perspective view of a conventional fluorescent advertising board,

2 is a cross-sectional view of the advertising board shown in FIG.

3 is a perspective view of an advertisement board according to a first embodiment of the present invention;

4 is a cross-sectional view of the advertising board shown in FIG.

5 is a cross-sectional view of the advertising board according to a second embodiment of the present invention;

6 is a cross-sectional view of an advertisement board according to a third embodiment of the present invention;

7 is a cross-sectional view of an advertisement board according to a fourth embodiment of the present invention;

8 is a cross-sectional view of an advertisement board according to a fifth embodiment of the present invention;

9 is a cross-sectional view of an advertisement board according to a sixth embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: ultraviolet light source 12: light source (ultraviolet or visible light)

20: front light guide plate 21: visible light transmission / ultraviolet blocking sheet

22: rear light guide plate 23: ultraviolet light reflection sheet

30: recording film 32: recording portion

P: Handwritten text or picture part (record part)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent advertising board (or neon board) in which a picture or text made of a fluorescent material is emitted. Specifically, a film and an advertising board recorded (handwritten or printed) with a special ink or a general ink containing a fluorescent material. The present invention relates to a surface handwritten and film interleaved advertising board that allows writing or drawing of fluorescent materials written directly on the surface to emit light at the same time.

Picture frames incorporating lighting devices are used inside the picture frames. When writing a text or a picture using a marker pen composed of a fluorescent material on the surface of the picture frame, the text or picture receives light generated by the lighting device inside the picture frame and emits fluorescent light again. Picture frame using method to improve visibility is used.

Figure 1 schematically shows the configuration of a conventional fluorescent (neon) board frame. In such a device, the light source 1 mainly uses an ultraviolet lamp which generates light of ultraviolet rays, and the wavelength uses ultraviolet rays around 365 nm. Since the ultraviolet rays of such wavelengths are not recognized by the human eye, even when escaping out of the glass, acrylic, or plastic-based material used as the light guide plate 2, the person does not know whether the light is emitted. When light of such wavelength is incident on the light guide plate 2 from the side of the light guide plate 2, the incident ultraviolet rays are localized only within the light guide plate 2 by total reflection inside the light guide plate 2 as shown in FIG. Will be.

On the other hand, when the light propagating in the light guide plate 2 by the total reflection method encounters the writing or drawing part P containing the fluorescent material on the surface of the light guide plate 2, the difference in refractive index between air and the components constituting the writing or drawing is determined. As a result, ultraviolet rays escape the light guide plate 2 only to the writing or drawing portion P. FIG. The ultraviolet light that escapes the light guide plate 2 stimulates the fluorescent material contained in the writing or drawing portion P, and the fluorescent material emits light inherent in the fluorescent material itself.

In the case of the fluorescent (neon) board of the conventional structure, it is necessary to write a text or a picture directly on the light guide plate 2 to obtain a desired light emitting effect, and there is an air layer between the text or picture part P and the light guide plate 2. When the ultraviolet light in the light guide plate (2) has a characteristic that does not escape to the writing or painting portion (P) by the total reflection. Therefore, in the case of a conventional fluorescent (neon) board, a person must write a text or a picture directly on a light guide plate, so only a person who is very good at writing or a picture can effectively use such a frame, and it is not suitable for a person who has bad writing or picture skills. There was a problem.

The present invention has been made in order to solve the above-mentioned conventional problems, an object of the present invention is first, so that the light emitting function of the fluorescent material occurs even when the film printed or handwritten with the ink solution containing the fluorescent material spaced apart from the light guide plate. Secondly, it is possible to emit light by writing words or pictures directly on the surface of the light guide plate. Third, it is possible to implement the first two functions at once. Fourth, ultraviolet rays which do not interfere with fluorescence escape out of the light guide plate. It is to provide a surface handwritten and film insert advertising board that can also prevent affecting the human body.

In order to achieve the above object, the present invention provides a front light guide plate in which writing or drawing is written with fluorescent ink, and an ultraviolet light source installed at the side of the front light guide plate so that a writing or drawing part written on the front light guide plate emits light; A surface hand-held and film-insertable type including a film spaced apart from the rear of the front light guide plate and having a writing or drawing portion recorded thereon and another light source incident on the film at a right angle to illuminate the writing or drawing portion recorded on the film Provide an advertising board.

In one embodiment of the present invention, the film recording (printing or handwriting) ink contains a fluorescent material, and the light source is composed of a rear light guide plate and an ultraviolet lamp installed on the side of the light guide plate to emit ultraviolet light to the light guide plate.

Preferably, a UV blocking / visible light transmitting sheet is attached to the rear surface of the front LGP, and an ultraviolet reflecting sheet is attached to the rear surface of the rear LGP to prevent ultraviolet rays from being emitted to the outside.

In another embodiment for preventing ultraviolet rays from being emitted to the outside, the recording film is an ultraviolet blocking / visible light transmitting film, and an ultraviolet reflecting sheet is attached to the rear surface of the rear light guide plate.

In another embodiment of the present invention, the film recording ink contains a fluorescent material, the recording film is an ultraviolet light transmitting film, a UV blocking / visible light transmitting sheet is attached to the rear surface of the front light guide plate, and the light source is recorded. It consists of several ultraviolet lamps arrange | positioned at the back of the film for dragons.

In another embodiment of the present invention, the film recording ink contains a fluorescent material, the recording film is a UV blocking / visible light transmitting film, the film recording ink is printed on the film surface in the direction of the ultraviolet light incident Or handwritten, the light source is composed of a plurality of ultraviolet lamps arranged behind the recording film.

In the present invention, the light source may be replaced by a blue lamp, a mercury lamp having a wavelength of 254 nm, an ultraviolet LED, and a blue LED.

In another embodiment of the present invention, the film recording ink is a general ink, and the light source is made of a visible light lamp so that the recording film uses a general backlight illumination method and is handwritten with an ink containing a fluorescent material on the front light guide plate to emit light. do.

Hereinafter, with reference to the accompanying drawings, preferred embodiments that do not limit the present invention will be described in detail.

3 and 4 are a perspective view and a cross-sectional view showing a first embodiment of the present invention. In this embodiment, two light guide plates 20 and 22 spaced apart in parallel are ultraviolet light sources 10 and 12, respectively. Irradiated from the side surface, but the rear surface of the light guide plate 22 disposed behind the UV reflecting sheet 23 is attached to uniformly emit the ultraviolet light emitted from the ultraviolet light source 12 to the front of the light guide plate 22, before and after In the space S between the light guide plates 20 and 22, an ultraviolet-transmissive recording film 30 in which a writing or drawing portion 32 is recorded (printed or handwritten) is inserted into a film recording ink containing a fluorescent material. An ultraviolet reflecting sheet 21 for blocking ultraviolet rays is attached to the rear surface of the light guide plate 20 disposed in front.

In this configuration, the writing or drawing portion 32 printed or handwritten with an ink containing a fluorescent material on the ultraviolet-transmissive recording film 30 inserted between the front and rear light guide plates 20 and 22 is formed on the rear light guide plate 22. Is activated by ultraviolet rays uniformly radiated toward the front to emit the writing or drawing portion 32, and the visible light is transmitted through the ultraviolet reflecting sheet 21 attached to the rear surface of the light guide plate 20. The light guide plate 20 is transmitted to the outside of the advertisement board.

On the other hand, since visible light emitted from the UV-transmissive recording film 30 is emitted as a component perpendicular to the front light guide plate 20, such light is emitted outside the advertisement board without causing total reflection by the light guide plate 20. . Since the ultraviolet light incident sideways from the ultraviolet light source 10 to the light guide plate 20 has a small incident angle, the ultraviolet light proceeds while undergoing total reflection by the light guide plate 20, and the light is directly written on the surface of the light guide plate 20. When the picture portion P is encountered, the light guide plate 20 moves out of the light guide plate 20 due to the change in refractive index, and then the fluorescent material contained in the ink of the portion P is stimulated to emit visible light. At this time, a part of the light emitted from the writing or drawing portion P written on the light guide plate 20 is emitted toward the light guide plate 20. Such light absorbs visible light traveling from the front light guide plate 20 toward the rear light guide plate 22 when the recording film 30 inserted between the light guide plates 20 and 22 is made of a visible light absorbing / ultraviolet light transmissive film. The light visible outside of the advertisement board is directly emitted from the recording portion 32 of the recording film 30 between the light guide plate 20 (arrow A) and the light guide plates 20 and 22. Only the arrow B) is recognized, thereby preventing visibility of visible light traveling from the outside of the advertising board to the inside of the advertising board and the light emitted from the light guide plate 22 in the direction from the rear light guide plate 22 to increase visibility. .

Meanwhile, ultraviolet rays (arrow C) uniformly emitted from the rear light guide plate 22 toward the front light guide plate 20 are blocked by the ultraviolet reflection sheet 23 attached to the rear surface of the rear light guide plate 22, so that the outside of the rear of the advertisement board Since the ultraviolet light incident on the side of the front light guide plate 20 is confined inside the light guide plate 20 by total reflection, the ultraviolet light is not emitted to the outside of the advertisement board.

The basic idea of the present invention is that the front light guide plate 20 directly written with the ink containing the fluorescent material and the front light guide plate 20 so that the writing or drawing portion P written on the front light guide plate 20 emits light. The writing or drawing portion 32 is recorded (printed or handwritten) with an ultraviolet light source 10 installed at a side of the side) and an ink containing a separate fluorescent substance spaced parallel to the rear portion of the front light guide plate 20. It consists of the structure of the ultraviolet light source 12 which injects in the perpendicular direction to the recording film 30 and the recording film 30 which has the writing or drawing part 32 printed or handwritten with the ink containing this fluorescent substance. There may be various embodiments that make this configuration possible.

For example, as shown in FIG. 5, instead of attaching the ultraviolet reflecting sheet 21 to the back of the light guide plate 20 in front, the recording is inserted into the space S between the front and rear light guide plates 20 and 22. When the film 30 is made of a UV blocking / visible light transmitting film, and the recording portion 32 of the recording film 30 is inserted toward the rear light guide plate 22, the same function as in the above-described first embodiment is obtained. Will be exercised.

As shown in Fig. 6, the light guide plate 22 is basically the same as the first embodiment shown in Fig. 4, but is located behind the recording film 30 recorded with ink containing a fluorescent substance. The same function can be achieved by removing the light guide plate 22 or arranging a plurality of ultraviolet light sources 12 behind the light guide plate 22 instead of the ultraviolet lamp 12 arranged on the side of the light guide plate 22.

In addition, as shown in FIG. 7, the recording film 30 recorded with the ink containing the fluorescent material in combination with the embodiments of FIGS. 5 and 6 is made of an ultraviolet blocking / visible light transmitting film, and this recording film The writing or drawing portion 32 printed or written on the 30 is inserted to face the rear light guide plate 22, and the rear light guide plate 22 is removed or a plurality of ultraviolet light sources behind the rear light guide plate 22 12), the same function as in the above embodiments can be achieved.

In addition, as shown in FIGS. 8 and 9, the front light guide plate 20 may use ink containing a fluorescent material to hand-write the writing or drawing portion P to emit light from the ultraviolet lamp 10. The recording film 30 which is received and emits light is inserted into or printed on the general film through which visible light is transmitted or printed or written on the general film, and the visible light source 12 on the rear light guide plate 22 side. Of course, it is also possible to combine the normal backlight type advertising and fluorescent light emitting function.

In FIG. 8, reference numeral 24 denotes a visible light reflecting sheet attached to the rear surface of the rear light guide plate 22.

In the present invention, although the present invention has been described using 365 nm ultraviolet light, phosphors that emit light by blue light have also been developed. Therefore, a light source incident from the side of the light guide plate may be used as a blue light source, and an ultraviolet lamp may also use each ultraviolet light. It is obvious that lamps or blue lamps can be replaced with LEDs (Light Emitting Didoe).

Furthermore, although the present invention has been described using ultraviolet light of 365 nm as the ultraviolet wavelength, a method using an ink using 254 nm light, which is a wavelength emitted directly from a mercury lamp, and using a fluorescent material already developed in a conventional fluorescent lamp may be used.

As described above, the present invention can emit visible light by inserting a recording film on which a writing or drawing part is printed or written with an ink containing a fluorescent material, and thus can be used by variously replacing a film produced by a printing or expert. In addition, since the user can directly write a text or a picture on the front light guide plate, a user who is not good at writing or drawing skill as well as a good hand have a useful effect of using the advertisement board in various ways effectively. .

Claims (8)

A front light guide plate 20 in which a writing or drawing portion P is handwritten with ink containing a fluorescent substance; An ultraviolet light source 10 installed at a side of the front light guide plate 20 so that a writing or drawing portion P written on the front light guide plate 20 emits light; A recording film 30 spaced apart from the rear side of the front light guide plate 20 and having a writing or drawing portion P printed or handwritten with ink; And a surface handwritten film insert, characterized in that it comprises another light source 12 which is incident on the recording film 30 at right angles and illuminates the writing or drawing portion 32 recorded on the recording film 30. Expression advertising board. The method according to claim 1, The film recording ink contains a fluorescent material, and the light source 12 is provided on the rear light guide plate 22 spaced apart in parallel to the rear of the front waveguide 10 and on the side of the rear light guide plate 22. A surface handwritten and film-insertable advertising board, characterized in that it is an ultraviolet lamp that emits ultraviolet rays at (22). The method according to claim 2, The UV blocking / visible light transmitting sheet 21 is attached to the rear surface of the front light guide plate 20, and the ultraviolet reflective sheet 23 is attached to the rear surface of the rear light guide plate 22. Insertion advertising board. The method according to claim 2, The recording film 30 is a UV blocking / visible light transmitting film, and the surface of the back light guide plate 22 is attached to the ultraviolet reflective sheet 23, the surface handwritten film insertion board. The method according to claim 1, The film recording ink contains a fluorescent material, the recording film 30 is an ultraviolet ray transmitting film, and a UV blocking / visible light transmitting sheet 21 is attached to the rear surface of the front light guide plate 20, and the light source ( 12) a surface handwritten and film insert advertising board characterized in that the ultraviolet lamp. The method according to claim 1, The film recording ink contains a fluorescent material, the recording film 30 is a UV blocking / visible light transmitting film, and the film recording ink contains a fluorescent material and is printed or printed on the film surface in the direction in which ultraviolet light is incident. Handwritten, the light source 12 is a surface handwritten film insert advertising board, characterized in that the UV lamp. The method according to claim 1, The light source (10, 12) is a blue lamp, mercury lamp having a wavelength of 254nm, ultraviolet LED, blue LED, surface handwriting and recording film insertion board characterized in that it is selected. The method according to claim 1, And the film recording ink is a general ink, and the light source is a visible light lamp.

Images