CN100346372C - Low-consumption luminous display plate and producing method thereof - Google Patents
Low-consumption luminous display plate and producing method thereof Download PDFInfo
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- CN100346372C CN100346372C CNB2004100062752A CN200410006275A CN100346372C CN 100346372 C CN100346372 C CN 100346372C CN B2004100062752 A CNB2004100062752 A CN B2004100062752A CN 200410006275 A CN200410006275 A CN 200410006275A CN 100346372 C CN100346372 C CN 100346372C
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- guide plate
- light guide
- power consumption
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Abstract
The present invention discloses a luminous display plate with low power consumption and a producing method thereof. The luminous display plate comprises a light conducting plate whose back surface is provided with digital code spray printing refracting points, and light sources. The present invention is characterized in that the farer a distance from the refracting points of the back surface of the light conducting plate to the light sources is, the large the grain diameter is and the sparser the spacing is; the top end of the light conducting plate is provided with a groove; the back surface of the light conducting plate is provided with reflecting films; the light sources are LEDs arranged at intervals, and are sealed in the groove of the light conducting plate by transparent glue; the reflecting films are encapsulated around the light conducting plate. The luminous display plate of the present invention adopts the LEDs as the light sources; the LEDs have low power consumption (smaller than 4 W/m<2>). Simultaneously, LED lamps are direct current supplies; a solar battery can be directly used for supplying power without the need of an inverter. The present invention reduces equipment cost, and further saves the power consumption of the inverter so that the power consumption quantity of the present invention is low. The present invention has the advantage of good performance and price rate, and can be widely applied to various occasions such as freeways, urban traffic signs, public advertisement propagation, district building illumination, road sign indication, etc.
Description
Technical field
The present invention relates to a kind of low-power consumption luminescence display panel and preparation method thereof.
Background technology
The advertising sign board that uses, propaganda board, public sign etc. have in the lamp box of light source at present, and most of daylight lamp and incandescent lamp of adopting is as light source.Mainly there is following problem in it: 1, because this class light source need use alternating current and rectification adverser, so power consumption is bigger.2, because the unlatching of fluorescent tube need be used starter, and when environment temperature was low, starter but was difficult for starting, and therefore caused the light source poor reliability of use.3, because lamp tube service life is short, just needed to change once in generally the longest 1 year, very inconvenient.4, because daylight lamp light image picture has shade, therefore the whole structure of display board is affected.
In addition, existing lamp box generally is by mains supply, and along with the energy is in short supply day by day, many cities arterial street in summer is carried out the supply of rationing the power supply, and this not only causes public sign such as traffic mark board normally not show, the popularization of city lighting engineering is affected.
Summary of the invention
At the problems referred to above, it is extremely low that fundamental purpose of the present invention provides a kind of power consumption, long service life, low-power consumption luminescence display panel that can directly be connected with solar cell and preparation method thereof.
For achieving the above object, the present invention is by the following technical solutions: a kind of low-power consumption luminescence display panel, it comprises that the back side has the light guide plate and the light source of digital spray printing refraction point, wherein: the described light source of refraction point distance at the described light guide plate back side is far away more, particle diameter is big more, spacing is sparse more, described light guide plate top offers groove, the back side is provided with reflectance coating, described light source is the LED luminotron that is provided with at interval, and be sealed in by transparent adhesive tape in the groove of described light guide plate, be packaged with reflectance coating around the described light guide plate.
The two ends up and down of described light guide plate all offer described groove, and are provided with described LED luminotron.
Per 2～8 of described LED luminotron is connected into one group, is connected in parallel between each group.
Per 2～8 of described LED luminotron is connected into one group, is connected in parallel between each group.
The front of described light guide plate is covered with diffusion barrier.
A kind of method for making of low-power consumption luminescence display panel, it may further comprise the steps:
1) offers groove on described light guide plate top;
2) described LED luminotron is placed in the described groove, and the lead of the usefulness of will switching on is drawn groove;
3) in described groove, pour into transparent adhesive tape, solidify;
4) back side of light guide plate covers reflectance coating;
5) around light guide plate, encapsulate reflectance coating.
In the described step 4, when covering reflectance coating, cover diffusion barrier in the front of described light guide plate.
In the described step 1, all offer groove in the top and the bottom of described light guide plate.
Owing to adopted above technical scheme, make the present invention have following advantage: 1, luminescence display panel of the present invention is owing to adopt the LED luminotron as light source, itself power consumption extremely low (less than 4W/ square metre); Because the LED light fixture is direct current supply, can be its power supply directly therefore, and need inverter simultaneously with solar cell, not only reduce equipment cost, and further saved the power consumption of inverter, make power consumption of the present invention lower, have cost performance preferably, very be beneficial to popularization.2, the present invention is owing to adopt the LED luminotron as light source, and it starts to moment starts, and needn't use starter, the present invention can normally be started under-40 ℃～+ 70 ℃ environment, reliability improves greatly, and light source life reaches 8～100,000 hours, and performance is very reliable and stable aspect low temperature; Because the life-span of LED luminotron surpasses 100,000 hours, be 15～20 times of conventional light fixtures simultaneously, make to reach serviceable life of the present invention more than 10 years, seldom need to safeguard.3, the present invention is by using high brightness big diffusion corner LED luminotron and the refraction point on the light guide plate being arranged to far away more apart from light source, particle diameter is big more, the mode that spacing is sparse more, make the light-path far away more wide more apart from light source, thereby solved the problem that pointolite is become area source well, make the shown picture brightness of the present invention even, the shadow-free band; Because LED luminotron of the present invention does not generate heat, make picture not easy to change simultaneously, guarantee that display board has good display effect.4, because the volume of LED luminotron is very little, so thickness of the present invention can be done very thinly, save material, reduce volume.
Description of drawings
Fig. 1 is a decomposing schematic representation of the present invention
Fig. 2 is a cut-open view of the present invention
Fig. 3 is a perspective exploded view of the present invention
Embodiment
Be elaborated below in conjunction with preferred embodiment of the present invention and conjunction with figs..
Shown in Fig. 1～3, luminescence display panel 10 comprises the light guide plate 11 and light source 12 with digital spray printing refraction point, and light guide plate 11 adopts polymethylmethacrylate (Poly Methyl Meth Acrylate) to make, and is optical grade PMMA light guide plate, it has certain thickness, can be made into different shape.The back side of light guide plate 11 is provided with numerial code spray drawing refraction point 111, refraction point 111 is far away more apart from light source 12 light sources, its particle diameter is big more, spacing is sparse more, make the light-path near more apart from light source narrow more like this, light-path far away more is wide more, thereby has solved the problem that pointolite is become area source, make the shown picture brightness of the present invention even, the shadow-free band.End (as the upper end) in light guide plate 11 offers U type groove, and light source 12 is wherein ccontaining.
In order to guarantee brightness, prevent light leak, be provided with reflectance coating 13 at the back side of light guide plate 11, around light guide plate, also be fixed with reflectance coating 13.
When the picture that is shown is the continuity picture, can diffusion barrier 14 be set in the front of light guide plate 11, make the lines continuity of picture good, latticed shade can not appear.
Because the LED luminotron can use direct current supply, therefore the present invention can directly adopt the solar cell for supplying power of environmental protection and energy saving, its cold-cathode tube or common daylight lamp than present use has reduced inverter, not only reduced cost, and the power consumption of further having saved inverter, also make the thickness of lighting display card can do very thinly.Add LED luminotron of the present invention and do not generate heat, also make picture not easy to change, further guarantee the display effect of lighting display card.
In sum, the present invention has the advantage of new forms of energy and new light sources concurrently, can replace aspect luminous plate or the lamp box advertisement Incandescent lamp and fluorescent lamp that generation is traditional, same brightness is energy-conservation more than 90%, and the life-span can prolong 10 times. Especially can In 40 degrees below zero normal operation, can be widely used in highway, urban transportation sign, public service ads publicity, The occasions such as buildings throws light on, trail guide is special. Its objective is energy savings, improve and beautify social LED The semi-conducting material power consumption is low, especially stable performance aspect low temperature, and the life-span was above 100,000 hours. It is conventional light fixture 15～20 times. The LED light fixture is direct current supply, has cancelled inverter in photovoltaic system, and cost descends, and is reliable Property significantly improves, and can be widely used in highway, urban transportation sign, public service ads publicity, buildings photograph The occasions such as bright, trail guide is special.
Claims (8)
1, a kind of low-power consumption luminescence display panel, it comprises that the back side has the light guide plate and the light source of digital spray printing refraction point, it is characterized in that: the described light source of refraction point distance at the described light guide plate back side is far away more, particle diameter is big more, and spacing is sparse more, and described light guide plate top offers groove, the back side is provided with reflectance coating, described light source is the LED luminotron that is provided with at interval, and is sealed in by transparent adhesive tape in the groove of described light guide plate, is packaged with reflectance coating around the described light guide plate.
2, a kind of low-power consumption luminescence display panel as claimed in claim 1, it is characterized in that: the two ends up and down of described light guide plate all offer described groove, and are provided with described LED luminotron.
3, a kind of low-power consumption luminescence display panel as claimed in claim 1 is characterized in that: per 2～8 of described LED luminotron is connected into one group, is connected in parallel between each group.
4, a kind of low-power consumption luminescence display panel as claimed in claim 2 is characterized in that: per 2～8 of described LED luminotron is connected into one group, is connected in parallel between each group.
5, as claim 1 or 2 or 3 or 4 described a kind of low-power consumption luminescence display panels, it is characterized in that: the front of described light guide plate is covered with diffusion barrier.
6,, it is characterized in that it may further comprise the steps as the method for making of the described a kind of low-power consumption luminescence display panel of claim 1～5:
1) offers groove on described light guide plate top;
2) described LED luminotron is placed in the described groove, and the lead of the usefulness of will switching on is drawn groove;
3) in described groove, pour into transparent adhesive tape, solidify;
4) back side of light guide plate covers reflectance coating;
5) around light guide plate, encapsulate reflectance coating.
7, as the method for making of a kind of low-power consumption luminescence display panel as described in the claim 6, it is characterized in that: in the described step 4, when covering reflectance coating, cover diffusion barrier in the front of described light guide plate.
8, as the method for making of a kind of low-power consumption luminescence display panel as described in claim 6 or 7, it is characterized in that: in the described step 1, all offer groove in the top and the bottom of described light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100062752A CN100346372C (en) | 2004-03-23 | 2004-03-23 | Low-consumption luminous display plate and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100062752A CN100346372C (en) | 2004-03-23 | 2004-03-23 | Low-consumption luminous display plate and producing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1674058A CN1674058A (en) | 2005-09-28 |
| CN100346372C true CN100346372C (en) | 2007-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100062752A Expired - Fee Related CN100346372C (en) | 2004-03-23 | 2004-03-23 | Low-consumption luminous display plate and producing method thereof |
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| CN (1) | CN100346372C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398148A (en) | 2007-09-28 | 2009-04-01 | 富士迈半导体精密工业（上海）有限公司 | Area source device for LED |
| US20110157879A1 (en) * | 2009-12-29 | 2011-06-30 | Du Pont Apollo Ltd. | Light assembly and method of manufacturing the same |
| CN102384372B (en) * | 2010-09-02 | 2015-05-20 | 杭州番飞光电科技有限公司 | Light emitting device of LED (light-emitting diode) area light source covered by optical film and production method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2494456Y (en) * | 2001-08-01 | 2002-06-05 | 吕文孝 | Motor on-off valve for intelligent gas controlling device |
| CN2544304Y (en) * | 2002-05-28 | 2003-04-09 | 三和企业股份有限公司 | A light guide plate structure |
| CN1482497A (en) * | 2002-09-12 | 2004-03-17 | 瀚宇彩晶股份有限公司 | Planar light source device and liquid crystal display |
-
2004
- 2004-03-23 CN CNB2004100062752A patent/CN100346372C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2494456Y (en) * | 2001-08-01 | 2002-06-05 | 吕文孝 | Motor on-off valve for intelligent gas controlling device |
| CN2544304Y (en) * | 2002-05-28 | 2003-04-09 | 三和企业股份有限公司 | A light guide plate structure |
| CN1482497A (en) * | 2002-09-12 | 2004-03-17 | 瀚宇彩晶股份有限公司 | Planar light source device and liquid crystal display |
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| Publication number | Publication date |
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| CN1674058A (en) | 2005-09-28 |
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Granted publication date: 20071031 |