Signage system for viewing images in both directions

Abstract

The present invention relates to a signage system for viewing images in both directions, and includes: a signage screen unit including a glass substrate, a first transparent film attached to the glass substrate, an optical film attached to the first transparent film and including a polyester resin and a cellulose ester resin, and a second transparent film attached to the optical film; and a beam projector unit. According to the present invention, provided is the signage screen unit having improved clarity due to improved transmittance and refractive index. In addition, when the beam projector unit is used, an image may be viewed in both directions even if image content is projected from one side of the signage screen unit.

Description

Signage system that allows video viewing from both directions

[0001] The present invention relates to a signage system capable of viewing images in both directions.

[0002] Digital signage offers superior visibility and information delivery compared to traditional analog billboards. Furthermore, it offers the advantage of remotely managing content via network access. Consequently, numerous technologies utilizing liquid crystal displays have been developed.

[0003] However, conventional technologies consist of conductive films and require externally applied voltage. This generates heat in the substrate, which can lead to deformation of the optical film. Preventing this requires additional manufacturing processes, and this also creates the problem of bezels, which form the boundaries between multiple display panels.

[0004] The present invention is a solution to the above-mentioned problems, and aims to provide a signage system capable of outputting video content without including conductivity in the film.

[0005] Another object of the present invention is to provide a signage system that enables viewing of video content in both directions through a signage screen section with improved clarity due to improved transmittance and refractive index.

[0006] In order to achieve the above purpose, the present invention provides a signage system capable of viewing images in both directions as a means of solving the problem.

[0007] According to one embodiment of the present invention, a signage system capable of viewing images in both directions may include a signage screen unit including a glass substrate, a first transparent film attached to the glass substrate, an optical film attached to the first transparent film and containing a polyester resin and a cellulose ester resin, and a second transparent film attached to the optical film; and a beam projector unit.

[0008] According to one embodiment of the present invention, the mass ratio of the polyester resin and the cellulose ester resin of the optical film may be 90:10 to 70:30.

[0009] According to one embodiment of the present invention, the thickness of the signage screen portion may be 0.5 to 50 mm, and most preferably 20 to 30 mm. As the thickness of the signage screen portion becomes thinner, the visible light transmittance increases and processing may be easier.

[0010] According to one embodiment of the present invention, the signage screen unit may output video content through the beam projector unit. The beam projector unit may project the video content at a distance of 1 to 3.7 m from the signage screen unit.

[0011] According to one embodiment of the present invention, the distance between the beam projector unit and the signage screen unit may be set differently depending on the size of the signage screen unit. In this case, the width (x), height (y) of the signage screen unit, and the distance (z) between the signage screen unit and the beam projector unit may be derived from the following mathematical formula.

[0012] [Mathematical formula]

[0013]

[0014] The present invention provides a signage screen unit with improved clarity due to improved transmittance and refractive index. Furthermore, when utilizing a beam projector unit, video content can be projected from one side of the signage screen unit, enabling viewing from both sides.

[0015] The 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.

[0016] [Figure 1] is a schematic diagram of a cut signage screen section according to one embodiment of the present invention.

[0017] [Figure 2] is a schematic diagram showing projection onto a signage screen using a beam projector according to one embodiment of the present invention.

[0018] [Figure 3] is an actual photograph showing the signage screen section.

[0019] [Figure 4] is an actual photograph showing projection onto a signage screen using a beam projector.

[0020] The present invention, which aims to achieve the above effects, relates to a signage system capable of viewing images in both directions. It should be noted that only the parts necessary for understanding the technical configuration of the present invention will be described, and the description of other parts will be omitted so as not to distract from the gist of the present invention.

[0021] Hereinafter, the present specification will be described in more detail.

[0022] The present invention provides a signage system capable of viewing images in both directions.

[0023] Specifically, the signage system capable of viewing images in both directions may include a signage screen unit including a glass substrate, a first transparent film attached to the glass substrate, an optical film attached to the first transparent film and containing a polyester resin and a cellulose ester resin, and a second transparent film attached to the optical film; and a beam projector unit.

[0024] At this time, the first transparent film is characterized by being one selected from the group consisting of polycarbonate (PC), polyester (PET), polyethylene (PEN), polypropylene (PP), and polyimide (PI), and most preferably, the first transparent film may be polycarbonate (PC).

[0025] The mass ratio of the polyester resin and the cellulose ester resin of the above optical film may be 90:10 to 70:30. At this time, if the mass ratio of the polyester resin and the cellulose ester resin is greater than 90:10 and the polyester resin is more, moisture resistance may decrease in a high temperature and high humidity environment, and if the mass ratio of the polyester resin is less than 70:30 and the polyester resin is less, visible light transmittance may decrease.

[0026] In addition, the second transparent film is characterized in that it is one selected from the group consisting of polyester (PET), polycarbonate (PC), polyethylene (PEN), polypropylene (PP), and polyimide (PI), and most preferably, the second transparent film may be polyester (PET).

[0027] The thickness of the above signage screen portion may be 0.5 to 50 mm, and most preferably 20 to 30 mm. The thinner the thickness of the signage screen portion, the higher the visible light transmittance and the easier it is to process.

[0028] The visible light transmittance of the above signage screen portion may be 80 to 95%.

[0029] The above signage screen portion may be processed by attaching and cutting the glass substrate using a hand roller. At this time, the attachment method may use an optical film adhesive to prevent static electricity generation and peeling. The cutting method may use laser cutting or blade cutting. Through this, the signage screen portion may be cut into various shapes according to the intended purpose, as illustrated in Fig. 1.

[0030] The refractive index of the above signage screen portion may be 1.1 to 1.7.

[0031] According to one embodiment of the present invention, the signage screen unit may output video content via the beam projector unit. In particular, as illustrated in FIG. 2, the signage screen unit may project video content from one side of the signage screen unit using the beam projector unit, thereby enabling video viewing from both sides.

[0032] In addition, the on / off of the video content can be controlled through the beam projector unit, and the type, brightness, contrast, and playback speed of the video can be controlled.

[0033] At this time, the beam projector unit may project image content with a brightness of 3800 ANSI lumens or more. In addition, the beam projector unit may be installed in an environment with an illuminance of 150 lx or less, and the viewing angle of the projected image content may be 110 to 150 degrees.

[0034] The above beam projector unit may project image content at a distance of 1 to 3.7 m from the signage screen unit. In addition, the distance between the beam projector unit and the signage screen unit may be set differently depending on the size of the signage screen unit. In this case, the width (x) and height (y) of the signage screen unit, and the distance (z) between the signage screen unit and the beam projector unit may be derived from the following mathematical formula.

[0035] [Mathematical formula]

[0036]

[0037] For example, when the width (x) of the signage screen part is 650 mm and the height (y) is 403 mm, the beam projector part may project the image content at a distance of 1 m from the signage screen part, and when the width (x) of the signage screen part is 1,400 mm and the height (y) is 810 mm, the beam projector part may project the image content at a distance of 2.1 m from the signage screen part.

[0038] Likewise, when the width (x) of the signage screen portion is 2,400 mm and the height (y) is 1,495 mm, the beam projector portion may project the image content at a distance of 3.7 m from the signage screen portion. That is, the signage screen portion may be manufactured in various shapes with a width of 650 to 2,400 mm and a height of 405 to 1,495 mm.

[0039] From the above description, those skilled in the art will understand that the present invention can be implemented in other specific forms without altering its technical spirit or essential features. In this regard, it should be understood that the embodiments described above are illustrative in all respects and are not limiting.

Claims

1. Glass substrate, A first transparent film attached on the above glass substrate, An optical film attached to the first transparent film and containing a polyester resin and a cellulose ester resin; and A signage screen section including a second transparent film attached on the optical film; and A signage system that allows viewing images from both directions, including a beam projector unit 2. In paragraph 1, A signage system capable of viewing images in both directions, characterized in that the mass ratio of the polyester resin and the cellulose ester resin of the optical film is 90:10 to 70:

30.

3. In paragraph 1, A signage system capable of viewing images from both directions, characterized in that the thickness of the above signage screen portion is 0.5 to 50 mm.

4. In paragraph 1 A signage system capable of viewing images from both directions, characterized in that the width (x), height (y) of the signage screen portion, and the distance (z) between the signage screen portion and the beam projector portion are derived by the following mathematical formulas. [Mathematical formula] 5. In paragraph 1, A signage system capable of viewing images from both directions, characterized in that the beam projector unit projects image content at a distance of 1 to 3.7 m from the signage screen unit.

Images