GB2450722A - Backlit illuminated display apparatus with image layer formed of one or more sheets of tracing paper. - Google Patents
Backlit illuminated display apparatus with image layer formed of one or more sheets of tracing paper. Download PDFInfo
- Publication number
- GB2450722A GB2450722A GB0712937A GB0712937A GB2450722A GB 2450722 A GB2450722 A GB 2450722A GB 0712937 A GB0712937 A GB 0712937A GB 0712937 A GB0712937 A GB 0712937A GB 2450722 A GB2450722 A GB 2450722A
- Authority
- GB
- United Kingdom
- Prior art keywords
- substrate
- image
- sheets
- tracing paper
- window
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000758 substrate Substances 0.000 claims abstract description 44
- 238000005286 illumination Methods 0.000 claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
A rear illuminated display apparatus comprises a light box containing an illumination source 18 and having a transparent front panel or window 16, and a translucent substrate 20 bearing an image disposed between the illumination source and the transparent front panel or window. The substrate comprises one sheet or a plurality of mutually adhered sheets of tracing paper. The substrate is formed to have sufficient rigidity so as to be generally self-supporting for ease of mounting substantially unaided within the lightbox and has an overall thickness in the range of 200 to 300 microns and/or a weight grade in the range of 200 gsm to 350 gsm. To improve the quality of the displayed image, identical images may be formed either on opposing sides of the substrate or on the superimposed sheets of tracing paper.
Description
S
IMPROVEMENTS IN OR RELATING TO
REAR-ILLUMINATED DISPLAYS
DESCRIPTION
Technical Field
This invention relates to rear illuminated displays and materials for such displays.
Background
Means to provide a rear-illuminated display most commonly comprises a light box containing an illumination source and having a transparent front panel or window, a replaceable translucent substrate bearing an image to be displayed being provided between the illumination source and the transparent front panel or window. Desirably the translucent substrate has a degree of opacity such as to prevent the illumination source being seen through the substrate in daylight and when the illumination source is inoperable. Additionally it is desirable for the substrate to be substantially self-supporting such that it does not fold or collapse within the light box. Adhering the substrate to the transparent front panel militates against easy replacement of the substrate (with a different image).
Heretofore these desiderata have been achieved by providing the substrate as a sheet of rigid plastics material such as opalescent p.v.c, and almost invariably a sufficient colour density or intensity for the image was obtained by printing on only one side of that substrate such that an excellent vivid image was visible from outside of the lightbox even in daylight and without the substrate being illuminated by the illumination source.
S
Modem waste-recycling requirements, e.g. to prevent global warming, now militate against the use of plastics material for the replaceable substrates. It is therefore necessary to consider alternative materials that meet inter alia the several desiderata outlined above and that are nevertheless readily recyclable.
It will be immediately apparent that a sheet of conventional card of, say, at least l6Ogsm weight grade, would be sufficiently rigid but far too opaque to serve as a substrate for the rear-illuminated display being discussed. A conventional paper of, say, approx 8ogsm weight grade would be less opaque but possibly still insufficiently translucent and would in any event be too flimsy and not self-supporting. Even if translucency were improved by using a sheet of conventional tracing paper, the flimsy nature of such a product -which, to improve translucency, is normally manufactured to be as thin as possible -would still prevent its use for the self-supporting substrates required.
Summary of the Invention
With a view to overcoming the above-mentioned and/or other practical or requirement conflicts, one aspect of the invention provides a light box containing an illumination source and having a transparent front panel or window, a translucent substrate bearing an image to be displayed being provided between the illumination source and the transparent front panel or window, characterised in that the substrate comprises one sheet or a plurality of mutually adhered sheets of tracing paper having an overall thickness in the range of 200k to 300i and/or a weight grade in the range of 200 gsm to 350 gsm.
With this thickness and/or weight grade, the substrate can have sufficient rigidty as to be generally self-supporting for ease of mounting within the lighthox.
The image may be printed on just one (outermost) face of said substrate. Preferably the image is printed on both opposed (outermost) faces of said substrate.
I
In one preferred embodiment the substrate is composed of two superimposed sheets of tracing paper each printed with an image (preferably the same image) on one side of the sheets, the two sheets being bonded to one another with a translucent adhesive with their images in register with one another.
Brief Description of the Drawings
By way of example embodiments of this invention will now be described with reference to the accompanying drawing of which the sole Figure, Figure 1, is a vertical cross-sectional sketch of a lightbox embodying the invention.
Detailed Description of Example(s) of the Invention The illustrated light box 10 is a parallelepiped having an opaque rear wall 11, a pair of opaque side walls 12, an opaque top wall 13, an opaque bottom waIl 14, and a front opening 15 that is normally closed by a transparent front panel or window 16 hinged to the forward edge of one of the side walls 12. The lightbox 10 contains an illumination source in the form of one or more fluorescent tubes 18 located adjacent the rear wall 11, and a translucent substrate 20 bearing an image to be displayed located between the illumination source 12 and the transparent front panel or window 16.
A first embodiment of the invention is characterised in that the substrate 20 comprises a single sheet of tracing paper having an overall thickness in the range of 200gi to 300p and/or a weight grade in the range of 200 gsm to 350 gsm, and the image to be viewed through the window 16 is printed on just one, outwards facing, face of substrate 20.
In a modification of this first embodiment, a reversed image is printed on the reverse, inwards facing face of substrate 20. In a preferred form of this modification, the reversed image matches and is aligned with the image printed on the outwards facing face of substrate 20.
A second embodiment of the invention is characterised in that the substrate 20 comprises a plurality of mutually adhered sheets of tracing paper having an overall
I
thickness in the range of 200jh to 300k and/or a weight grade in the range of 200 gsm to 350 gsm. In this case too the image is printed on just one, outermost face of substrate 20.
In a first modification of this second embodiment, a reversed image is printed on the reverse, LilOSt inwards facing face of substrate 20.
In a second modification of said second embodiment, a reversed image is printed on the reverse, face of any one one of the layers of the substrate 20.
In a preferred form of either said modification, the reversed image matches and is aligned with the image printed on the outwards facing face of substrate 20.
In one preferred embodiment the substrate 20 is composed of two superimposed sheets of conventional, minimum transparency, tracing paper each sheet being printed with an image on one side of the sheets, the two sheets being bonded to one another with a translucent adhesive with their images in register with one another. Advantageously the same image is printed on the forwardly facing side of each sheet. Preferably the sheets are superimposed with their respective images in registry with one another.
It will be appreciated that with the stated thickness and/or weight grade, the substrate can have sufficient rigidty as to be generally self-supporting for ease of mounting within the lightbox 10.
Some or all of the above-mentioned embodiments of this invention and/or their modifications allow for a sufficient colour density or intensity to be obtained for the image such that an excellent vivid image is visible through window 16 from outside of the lightbox 10 even in daylight and without the substrate 20 being illuminated by the illumination source 18.
S
Other modifications and embodiments of the invention, which will be readily apparent to those skilled in this art, are to be deemed within the ambit and scope of the invention, and the particular embodiment(s) hereinbefore described may be varied in construction and detail, e.g. interchanging (where appropriate or desired) different features of each, without departing from the scope of the patent monopoly hereby sought.
Claims (7)
1. Apparatus for use in the provision of a rear illuminated display, said apparatus comprising a light box containing an illumination source and having a transparent front panel or window, a translucent substrate bearing an image to be displayed being provided between the illumination source and the transparent front panel or window, characterised in that the substrate comprises one sheet or a plurality of mutually adhered sheets of tracing paper having an overall thickness in the range of 200z to 300IL and/or a weight grade in the range of 200 gsm to 350 gsm.
2. Apparatus for use in the provision of a rear illuminated display, said apparatus comprising a light box containing an illumination source and having a transparent front panel or window, a translucent substrate bearing an image to be displayed being provided between the illumination source and the transparent front panel or window, characterised in that the substrate comprises one sheet or a plurality of mutually adhered sheets of tracing paper with sufficient rigidty as to be generally self-supporting for ease of mounting substantially unaided within the lightbox.
3. Apparatus according to Claim 1 or Claim 2, wherein the said image is printed on just one (outermost) surface of said substrate.
4. Apparatus according to Claim 1 or Claim 2, wherein the said image is printed on both opposed (outermost) faces of said substrate.
5. Apparatus according to Claim 4, wherein the substrate is composed of two superimposed sheets of tracing paper each printed with an image (preferably the same image) on one side of the sheets, the two sheets being bonded to one another with a translucent adhesive with their images in register with one another.
6. Apparatus for use in the provision of a rear illuminated display, said apparatus being substantially as herein described with reference to and/or as illustrated in the accompanying drawings.
7. A substrate for use in apparatus according to any preceding Claim, wherein said substrate comprises one sheet or a plurality of mutually adhered sheets of tracing paper having an overall thickness in the range of 2OO to 3OO and/or a weight grade in the range of 200 gsm to 350 gsm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0712937A GB2450722A (en) | 2007-07-03 | 2007-07-03 | Backlit illuminated display apparatus with image layer formed of one or more sheets of tracing paper. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0712937A GB2450722A (en) | 2007-07-03 | 2007-07-03 | Backlit illuminated display apparatus with image layer formed of one or more sheets of tracing paper. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0712937D0 GB0712937D0 (en) | 2007-08-15 |
| GB2450722A true GB2450722A (en) | 2009-01-07 |
Family
ID=38440355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0712937A Withdrawn GB2450722A (en) | 2007-07-03 | 2007-07-03 | Backlit illuminated display apparatus with image layer formed of one or more sheets of tracing paper. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2450722A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB270942A (en) * | 1926-09-14 | 1927-05-19 | Anton Schumacher | Improvements in transparencies for advertising and like purposes |
| FR2263117A1 (en) * | 1974-03-08 | 1975-10-03 | Spiller Libert | Low cost illuminated picture - has oil painting on tracing paper between glass sheets supported by lamp housing |
| DE2637400A1 (en) * | 1976-08-19 | 1978-02-23 | Bronevskij | Transparencies sandwiched in glass-reinforced plastics - for use as colour slides, posters, traffic signs, etc. |
| GB2211467A (en) * | 1987-10-23 | 1989-07-05 | Sheena Drummond Designs Limite | Illuminated signs for advertising/display |
| EP0697281A1 (en) * | 1994-08-15 | 1996-02-21 | Oji Yuka Goseishi Co., Ltd. | Film for illuminated signboard |
| US5494735A (en) * | 1994-02-21 | 1996-02-27 | Oji Yuka Goseishi Co., Ltd. | Composite synthetic paper |
-
2007
- 2007-07-03 GB GB0712937A patent/GB2450722A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB270942A (en) * | 1926-09-14 | 1927-05-19 | Anton Schumacher | Improvements in transparencies for advertising and like purposes |
| FR2263117A1 (en) * | 1974-03-08 | 1975-10-03 | Spiller Libert | Low cost illuminated picture - has oil painting on tracing paper between glass sheets supported by lamp housing |
| DE2637400A1 (en) * | 1976-08-19 | 1978-02-23 | Bronevskij | Transparencies sandwiched in glass-reinforced plastics - for use as colour slides, posters, traffic signs, etc. |
| GB2211467A (en) * | 1987-10-23 | 1989-07-05 | Sheena Drummond Designs Limite | Illuminated signs for advertising/display |
| US5494735A (en) * | 1994-02-21 | 1996-02-27 | Oji Yuka Goseishi Co., Ltd. | Composite synthetic paper |
| EP0697281A1 (en) * | 1994-08-15 | 1996-02-21 | Oji Yuka Goseishi Co., Ltd. | Film for illuminated signboard |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0712937D0 (en) | 2007-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |