CN100559432C - The display device and the manufacture method thereof of light storage material have been used - Google Patents
The display device and the manufacture method thereof of light storage material have been used Download PDFInfo
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- CN100559432C CN100559432C CNB2007101262660A CN200710126266A CN100559432C CN 100559432 C CN100559432 C CN 100559432C CN B2007101262660 A CNB2007101262660 A CN B2007101262660A CN 200710126266 A CN200710126266 A CN 200710126266A CN 100559432 C CN100559432 C CN 100559432C
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Abstract
A kind of use light storage material, high brightness and fluorescent lifetime is long, from the luminous equably display device of entire display panel.In the space that the baffle plate of the thickness with regulation that is clipped by display board (11) and reflecting plate (13) constitutes, mix and the light storage material (21) of milky compaction material of filling (22) and powder shape.Scattering takes place in the light that each particle sent of light storage material (21) in milky compaction material (22), can be from the whole light that sends high brightness equably of display board (11).In addition, owing to utilize the viscosity of compaction material (22) under the state that light storage material (21) is disperseed equably, to make, so can use thick baffle plate (12) to make, a large amount of filling light storage materials (21), thereby a kind of high brightness and the long display device of fluorescent lifetime can be provided.
Description
Technical field
The present invention relates to a kind of display device and manufacture method thereof of having used light storage material.
Background technology
Even in night or dark place, also can pass on the display device of clear and definite information or sign etc. to be used to various purposes to visual person.Wherein, accept light irradiation, lay in its luminous energy and do not need power supply to carry out self luminous light storage material, thereby see especially from energy-conservation viewpoint and to attract people's attention, used the display device of this light storage material or the practicability of sign to make progress.As the display device of having used this light storage material etc., obtain exploitation in following each side.
In the patent documentation 1 described invention be, will in transparent resins such as ABS resin, AS resin, styrene resin, mix light storage material, be shaped to the shape of expectation and sine plate embedding opaque resin plate that obtains and the refuge guide sign of fixing.
In the invention shown in the patent documentation 2, at metal substrate surface groove is set, at recess coating whitewash,, its sintering is obtained holding the light display board at this groove pack into material that has mixed many metallic compounds or rare earth element and the material that has mixed vehicle.As the whole light storage material in the groove, obtained the display board of high brightness.In addition, form epithelium by the sintering oxidation titanium, alleviated adhering to of rubbish and dust thus at this substrate surface.
Patent documentation 4 described inventions are a kind of handle covers that improved the door of identity at night.The material that will cooperate light storage material in the silicone rubber of milky transparent type and form adds sulphur and is configured as the door handle shape.
Patent documentation 1: TOHKEMY 2002-51632 communique
Patent documentation 2: TOHKEMY 2002-328634 communique
Patent documentation 3: TOHKEMY 2003-131599 communique
Patent documentation 4: Japanese kokai publication hei 11-350804 communique
In the patent documentation 1, mixed into light storage material in hard resin materials such as ABS, light storage material just is difficult to make resin forming more than 40% if mix in this resin.Therefore, the problem of its existence is to increase the refuge guide sign that light storage material can not obtain high brightness.
In addition, mix into light storage material in transparent resin, transparent resin can not make the light generation scattering from light storage material, and therefore, the problem of its existence is to make refuge guide sign integral body luminous equably.
Moreover hard resin deforms when being subjected to stress thereupon, but because hard resin does not have pliability, so the adaptation variation of resin and light storage material and produce the gap.Therefore, the problem of its existence is that the refraction index changing of light can not be brought into play certain brightness.
In the patent documentation 2, charging feedstock carries out sintering in being located at the groove of substrate, directly forms light storage material in groove, and therefore, substrate must use the sheet metal of anti-high temperature more than 1000 ℃.Therefore, must make the groove of the display shape of regulation, but owing to be difficult to carry out the groove processing of sheet metal, so the problem of its existence is to be difficult to make easily desired display board.
In the patent documentation 3, only be paved with on frame material and held light particle preparation and glass chip, therefore, can not make and hold light particle preparation and disperse equably, the problem of its existence is, becomes sparse from the light of display surface.
In addition, do not have to cover the compaction material that holds light particle preparation on frame material, can not make from the light generation scattering of holding light particle preparation, therefore, the problem of its existence is to make display surface integral body luminous equably.
In the patent documentation 4, be to use the cover of door handle of the silicone rubber moulding of milky semitransparent type.Because it covers door handle, suffers damage in order not make its function, so with respect to 100 parts of silicone rubbers, only contain the light storage material about 10～20 parts.
In addition, cover door handle in order to make handle cover, it must be scalable, simultaneously, must keep the original wieldy size of door handle.Therefore, owing to must make thinness about 1mm, the retractility of silicone rubber and intensity are without prejudice,, simultaneously, can not use the light storage material of big particle diameter so just can not increase light storage material comparatively speaking.Therefore, the problem of its existence is, can not make the long handle cover of high brightness and fluorescent lifetime.
Moreover, since handle cover himself is luminous, so it does not possess the function that backlight is arranged.
Summary of the invention
The invention is characterized in to possess: the transparent display board that is provided with character, symbol, pattern etc.; Reflecting plate; Be arranged on the baffle plate between described display board and the described reflecting plate with specific thickness; Be inserted into the luminescent layer of forming by light storage material in the space that constitutes by described display board and described reflecting plate and described baffle plate, described luminescent layer is the luminescent layer with specific thickness that has mixed nontransparent compaction material and light storage material, described light storage material covers and makes homodisperse shape by described compaction material, in described compaction material, make light generation scattering, as using from the luminous equably backlight of described display board integral body from light storage material.
In addition, the invention is characterized in, described reflecting plate is made white plate, make light reflection, improve brightness from described light storage material.
Feature of the present invention also is, uses milky compaction material as described compaction material, makes the light generation scattering from described light storage material.
Feature of the present invention also is, uses calking agent or sealant in the described compaction material, covers described light storage material by described compaction material.
Feature of the present invention also is, described display board, described reflecting plate and described baffle plate be resin system or glass so that it keeps physical strength, make described luminescent layer not have physical strength, thereby fully contain light storage material its heavy back is formed.
Feature of the present invention also is, between described luminescent layer and described reflecting plate, light guide plate is set, it possesses: the light-emitting component resettlement section that the described light guide plate of driving fit is provided with and with the light-emitting component of described light guide plate opposite disposed in described light-emitting component resettlement section, described luminescent layer forms and the roughly the same size in described light-emitting component resettlement section, light from described light-emitting component continues to make described light storage material to hold light on one side, Yi Bian make described display board integral body luminous equably.
Feature of the present invention also is, possess: the first transparent display board, the second transparent display board, be arranged on the baffle plate between described first display board and second display board with specific thickness, be inserted into the luminescent layer of forming by light storage material in the space that constitutes by described display board and described reflecting plate and described baffle plate, at described first display board, one side or the both sides of second display board are provided with character, symbol, pattern etc., described luminescent layer is the luminescent layer with specific thickness that has mixed nontransparent compaction material and light storage material, described light storage material is covered by described compaction material and makes homodisperse shape, makes the light generation scattering from light storage material be used as using from the luminous equably backlight of described display board integral body in described compaction material.
Feature of the present invention also is, mixes described light storage material and described compaction material, utilizes the viscosity of described compaction material to cover each particle of described light storage material, and it is disperseed in described compaction material equably, is filled to described space afterwards.
Feature of the present invention also is, even paste first display board and mix in the space that constitutes and fill the light storage material and the also rubber-like compaction material that hardens at the baffle plate that will have specific thickness, the smooth thickness that turns to described baffle plate of potpourri with described light storage material and described compaction material, after volatilization composition volatilization that makes described compaction material and sclerosis, keeping elastic adhesive second display board of compaction material.
According to the present invention, because the light that each particle of light storage material sends is by milky compaction material scattering, so have can be from the luminous equably advantage of display board integral body for it.
In addition, according to the present invention, as mentioned above, because can be luminous equably from display board integral body, use so can be used as backlight.
Moreover, according to the present invention, even owing to constitute by the light storage material of any particle diameter, also can enough milky compaction materials make light generation scattering from the various light quantities of each light storage material, as long as, just can obtain the advantage of the light-emitting device of same brightness so its total amount with the light storage material that is contained in luminescent layer is identical.
Moreover, according to the present invention, even used harden also rubber-like calking agent or sealant, because the elasticity and the sealing height of compaction material, so even display device is to being subjected to stress or thermal distortion, also can keep the cohesive of compaction material and light storage material, therefore, realized very close to each other, anaclasis is constant and the brightness of regulation luminous.
Moreover, according to the present invention, because reflecting plate uses white plate, so a kind of display device that improves the high brightness of brightness from the light generation scattering of light storage material that makes can be provided.
Moreover, according to the present invention, use hard resin such as polycarbonate resin or tempered glass etc. to improve physical strength owing to display board, baffle plate and reflecting plate, so realized use in the place that the passage at buildings corridor or station etc. is hit.
Moreover, according to the present invention, because luminescent layer is mechanically supported by display board, baffle plate and reflecting plate, so do not need mechanical intensity, can mix a large amount of light storage materials at luminescent layer, and, because all compaction materials fill up its space, thereby can significantly improve luminous quantity.
Moreover, according to the present invention,, use light-emitting component to make the light storage material that has formed enough thick luminescent layer continue to hold light owing to inboard from luminescent layer, so, a kind of sustainable display device of sending the light of certain brightness can be provided.
Moreover, according to the present invention, make light storage material continue to hold light, so, also can make the luminous advantage of discerning display board of light storage material immediately even it has under the situation of interruption power supplys such as emergency condition owing to use from the light of light-emitting component and the heat of generation.
Moreover, according to the present invention, owing to constitute confined space with light-emitting component resettlement section and light guide plate, the heat of utilizing light-emitting component to produce, make the gas medium air temperature warming of light-emitting component resettlement section and luminescent layer is heated, therefore, compare with the situation of only utilizing light to hold light, the luminescence efficiency of luminescent layer improves, and has realized the luminous of high brightness.
Moreover, according to the present invention, because for to clip constituting of luminescent layer, so it has the advantage that no matter from which display board can both discern by first display board and second display board.
Manufacturing method according to the invention, because by reflecting plate or first display board with have that a filling has mixed the material of light storage material and compaction material in the space that the baffle plate of the thickness of regulation constitutes, so can be easy to obtain having the luminescent layer of specific thickness.
Moreover, manufacturing method according to the invention is utilized the viscosity of compaction material, each particle of light storage material is covered on the compaction material so that its state that disperses is equably kept, therefore, it has and can be easy to provide a kind of advantage that makes the display device that light storage material disperses equably.
Moreover, manufacturing method according to the invention, owing to used the good compaction material of sealing, thus can entrained air when making luminescent layer, can access the luminescent layer that does not have the space.
Moreover, manufacturing method according to the invention, as mentioned above, owing to utilize the viscosity of compaction material to keep the state that light storage material is disperseed equably, under this state, make the compaction material sclerosis by air dry, use the thick a large amount of light storage materials of baffle plate filling so it has, no matter form the display device that how thick luminescent layer also can provide a kind of high brightness.
Description of drawings
Fig. 1 (A), (B) are the stereographic maps of the outward appearance of expression display device of the present invention;
Fig. 2 (A), (B) are the sectional views of the inner structure of expression display device of the present invention;
Fig. 3 is the stereographic map that identifies the outward appearance of the display device that is provided with display device of the present invention;
Fig. 4 is the sectional view of inner structure that expression is provided with the display device of display device of the present invention;
Fig. 5 (A)～(D) is the process chart of the manufacture method of expression display device of the present invention;
Fig. 6 (A)～(C) is the chart that the relation of display device fluorescent lifetime that the light storage material of single particle size of the present invention forms and brightness has been used in expression;
To be expression be used in combination the chart of the relation of the display device fluorescent lifetime that forms and brightness with the light storage material of multiple particle diameter of the present invention to Fig. 7 (A)～(C);
Fig. 8 (A)～(C) is the chart of the relation of expression fluorescent lifetime of display device of the present invention and brightness;
Symbol description
1 display device
2 luminescent layers
3 are provided with the display device of lighting device
11 display boards
12 baffle plates
13 reflecting plates
14 light guide plate
21 light storage materials
22 compaction materials
31 light-emitting component resettlement sections
32 attaching plugs
33 light-emitting components
Embodiment
Below, with reference to accompanying drawing 1, the summary of display device of the present invention is described.Fig. 1 (A) has been to use the luminous display device 1 of the single face of reflecting plate 13, and Fig. 1 (B) is to use display board 11 to replace the display device 1 of the double-side of reflecting plate 13.Shown in figure (A), the luminous display device 1 of single face of the present invention is the formation that clips the baffle plate 12 of shaped as frame with display board 11 and reflecting plate 13.In the inner space that constitutes like this, insert the luminescent layer 2 that mixes by light storage material 21 (with reference to Fig. 2) and compaction material 22 (with reference to Fig. 2).
The light that reflecting plate 13 will send from the light storage material 21 of luminescent layer 2 reflects to improve brightness.For improving emission characteristics, reflecting plate 13 uses nontransparent material, the white plate of wherein preferred use.
The material of display board 11, baffle plate 2 and reflecting plate 13 is not particularly limited, but preferably use polycarbonate resin, glass such as hard resin such as acrylic resin, PET resin, vestolit or tempered glass.Because polycarbonate resin intensity height, so the intensity of display device 1 uprises, use can be not broken yet under the place of normal impact even apply at the corridor of buildings and the passage at station etc., thus preferably it.In addition, acrylic resin etc. are the coating titanium dioxide easily, and titanium dioxide plays a role as photocatalyst, can lean on natural force to remove attached to the spot on the display device 1.Therefore, can clean display device 1, suppress the visibility variation of the display device 1 that causes because of spot etc.
In addition, shown in Fig. 1 (B), also can not use reflecting plate 13 but replace and use transparent display board 11.(B) character identical with (A) etc. drawn in the inside of expression display device 1 on the display board 11 on surface.Like this, make the structure that clips the baffle plate 12 of shaped as frame with two transparent display boards 11, especially make the structure that character etc. is set on two transparent display board 11 two sides,, just become no matter which face can both see contents such as character clearly from from the lighting at two sides of display board 1.Even the material of display board 11 grades is also with above-mentioned the same in this case.
The inner structure of display device of the present invention is described with reference to Fig. 2.The luminous display device 1 of single face shown in Fig. 2 (A) is inserted with the luminescent layer of being made by light storage material 21 and compaction material 22 2 as mentioned above in the space that is made of display board 11, baffle plate 12 and reflecting plate 13.Each particle of light storage material 21 is filled with material and covers, and disperses equably and dispose, and in compaction material, the light that sends from light storage material 21 produces scattering, makes display board 11 integral body luminous equably.Therefore, luminescent layer 2 has the function as backlight.
In addition, in the present invention, as described later, bonding baffle plate 12 on reflecting plate 13 and the space that forms since just mixed filling compaction material 22 and light storage material 21, so even a large amount of light storage materials 21 of packing into also can make at an easy rate.Therefore, can make light storage material 21 more than the 50 weight % with luminescent layer 2, can access the display device of high brightness.
The compaction material 22 preferred milky materials that use.By using milky compaction material 22, make the light that sends from light storage material 21 in compaction material 22, produce scattering easily, will make luminescent layer 2 integral body luminous equably.Therefore, just can obtain from display board 11 integral body luminous uniformly.If especially use the light storage material 21 of big particle diameter, then owing to make the gap between each light storage material 21 become big, cause the part to brighten, make can not obtain from display board 11 luminous uniformly, but, because milky compaction material 22 can make light produce scattering effectively, so can make display board 11 integral body luminous equably.
In addition,, then can see the light storage material 21 of grain of rice shape, cause the aesthetic property variation from the transparent part of display board 11 if use the light storage material 21 of big particle diameter.But, because compaction material 22 is milkys, so, even the outward appearance of light storage material 21 non-luminance by day also is difficult to see to have specious advantage.
Even also have elasticity, the mechanicalness intensity difference after compaction material 22 sclerosis.Owing to wherein mix light storage material 21,,, cause luminescent layer 2 self to damage if use same as before then light storage material 21 is peeled off so in luminescent layer 2 monomers, do not have supporting functions.But luminescent layer 2 covers owing to being shown plate 11, baffle plate 12 and reflecting plate 13, so just do not need mechanical intensity.If especially display board 11, baffle plate 12 and reflecting plate 13 use hard resin and glass such as polycarbonate, then display device 1 self mechanicalness intensity will be very strong.Like this, because luminescent layer 2 self does not need physical strength, so can a large amount of light storage material 21 of filling.Therefore, also can with more than the 50 weight % of luminescent layer 2 as light storage material 21.And, use baffle plate 12 with thickness, no matter it how thickly also can be made of the luminescent layer 2 of increase thickness.In addition, owing to can constitute by the luminescent layer 2 with thickness, so even the light storage material 21 of the big particle diameter of filling also is no problem.
Need to prove, for the display device 1 of the double-side shown in Fig. 2 (B), except being arranged to replace the reflecting plate 13 with above-mentioned the same with transparent display board 11.
Fig. 3 represents to be provided with the outward appearance of the display device 3 of lighting device, and Fig. 4 represents its inner structure.
Inner structure as shown in Figure 4 in the display device 3, is provided with light guide plate 14 between the luminescent layer 2 of above-mentioned display device 1 and reflecting plate 13, driving fit is provided with light-emitting component resettlement section 31 on light guide plate 14.And, make light-emitting component 33 and light guide plate 14 opposite disposed in light guide plate 14 inside.
Because light guide plate 14 can make the light from light-emitting component 33 efficiently pass through, promote the light that holds of light storage material 21, so preferably use material transparent.
Light-emitting component 33 provides light and heat by supply powers such as source power supplies to light storage material 21, luminescent layer 2 is kept continued to hold light state.
The circulation of air can not take place in 31 driving fits of light-emitting component resettlement section in the space that is made of light-emitting component resettlement section 31 and light guide plate 14 on light guide plate 14.Therefore,, make luminescent layer 2 heating, improve the luminescence efficiency of luminescent layer 2 by using the gas medium temperature that promotes light-emitting component resettlement section 31 from the heat of light-emitting component.Gas medium temperature also relies on environment for use, greatly about about 40 ℃.
In addition, light-emitting component resettlement section 31 forms the size roughly the same with luminescent layer 2.By such formation, the light that sends from light-emitting component 33 can irradiation luminous layer 2 integral body via light guide plate 14, thereby can make the light storage material 21 that constitutes luminescent layer 2 hold light equably.Equally, the heat that sends from light-emitting component 33 can be passed to luminescent layer 2 on the whole.
Light-emitting component 33 is as long as light storage material 21 being continued hold under the state of light and can luminously just can using arbitrarily, consider use fluorescent light, incandescent lamp, cold-cathode tube, perhaps light emitting diode.In addition, the temperature rises owing to make light-emitting component resettlement section 31 gas inside media for light-emitting component 33, improves the luminescence efficiency of light storage material 21, so preferred high fluorescent light or the incandescent lamp of thermal value.
As long as supply power, light-emitting component 33 will continue luminous, is night or the display device of all keeping the brightness of regulation daytime no matter constitute.
In addition, the light and heat that light-emitting component 33 sends is kept the state that makes light storage material 21 continue to hold light, when having a power failure or cut off accumulator, makes light storage material 21 luminous immediately, can make display board 11 integral body luminous equably.
The inboard of light-emitting component resettlement section 31 and reflecting plate 14 preferably use white or silver color, can reflect the light that sends from light-emitting component 33, and make light storage material 22 hold light fully.In addition, when light storage material 21 is luminous, can improve brightness by reflected light.
Below, with reference to the manufacture method of accompanying drawing 5 explanations display device of the present invention.
Fig. 5 (A) is the operation of bonding shaped as frame baffle plate 12 on reflecting plate 13, needs only to use commercially available bonding agent just passable when bonding.
Fig. 5 (B) is the operation that forms luminescent layer 2.Light storage material 21 and compaction material 22 are mixed.Use granular light storage material 21, both can use single particle size also can be used in combination the light storage material of different-grain diameter.Compaction material 22 uses calking agent or sealant.Because they have viscosity before sclerosis, cover fully so each particle of light storage material 21 can be filled with material 22.And, because the dispersiveness of light storage material 21 improves because of the viscosity of compaction material 22, so it becomes the state that disperses equably.In addition, because sealing, the water proofing property of calking agent and sealant are good, so also can in compaction material 22, not produce bubble.
The thing of this light storage material 21 and compaction material 22 mixing is filled into the space that is made of baffle plate 12 and reflecting plate 13.Utilize the viscosity of compaction material 22, each particle of light storage material 21 also can be filled with material 22 coverings after filling, keeps the state that is scattered here and there equably.
Like this, even because baffle plate 12 is very thick, the state that each particle that utilizes the viscosity of compaction material 22 also can keep light storage material 21 is scattered here and there equably is so use the baffle plate 12 with all thickness just to become possibility.By increasing the thickness of baffle plate 12, can access display device with any thickness, therefore, the amount that increases light storage material 21 obtains the display device 1 of high brightness.
After the filling, to make the potpourri complanation of the light storage material 21 and the compaction material 22 of filling with the corresponding to mode of the height of baffle plate 12.Unnecessary potpourri is removed at this moment.When complanation, need only and use round end scraper etc.
Fig. 5 (C) is the operation that makes luminescent layer 2 dry backs paste display board 11.
Formed after the luminescent layer 2, carried out drying, the volatilization composition that is contained in the compaction material 22 is vapored away, made compaction material 22 sclerosis.In the present invention, even used the calking agent that also can not follow the string after the sclerosis such as aforesaid acrylic acid series, urethanes system as filling 22.Because even sclerosis also has elasticity, so can not damage the adaptation of compaction material 22 and light storage material 21.
After making compaction material 22 sclerosis, the bonding transparent display board 11 that is provided with character etc.
Via above-mentioned operation, shown in Fig. 5 (D), finished display device 1 of the present invention.Like this, just can make the display device 1 of high brightness simply with desirable thickness.
Need to prove, make not using reflecting plate 13 when the two sides all made the display device 1 of display board 11,, then can make same as described abovely if use the display board 11 that is provided with literal etc. to replace reflecting plates 13.
Prepare the light storage material of multiple particle diameter, make the display device that a side has been used reflecting plate, carry out the brightness test by above-mentioned manufacture method.Fig. 6 represents just the fluorescent lifetime of the display device that the light storage material by single particle size constitutes and the relation of brightness, and Fig. 7 represents the fluorescent lifetime of the display device that the light storage material by multiple particle diameter constitutes and the relation of brightness.
Light storage material prepare the to turn blue light-storing material EZCM (イ-ジ-Block ラ イ ト Co., Ltd. system) of particle diameter of 150 μ m, 1000 μ m, 3000 μ m, 5000 μ m of coloured light makes display device that the light storage material by single particle size constitutes and each three sample of display device that the light storage material of multiple particle diameter is constituted.
Compaction material uses as white compaction material Ha マ イ De SS-310 (Yokohama Rubber Co., Ltd's manufacturing), and light storage material and the compaction material that is contained in each sample mixed use in 1: 1 by weight proportion.The thickness of baffle plate all uses 7mm thick, and display board and reflecting plate are made of the size of 3cm * 6cm respectively.And reflecting plate uses white plate, simultaneously, uses water white display board.
Each sample shading more than 24 hours, afterwards, is used two the 40W fluorescent light has carried out each sample two hours apart from fluorescent light 170cm vertical irradiations.Behind the vertical irradiation, use LS-100 nitometer (ミ ノ Le Co., Ltd. system), test the brightness of each sample by measuring distance 40cm.
The time of the particle (sample 3) that Fig. 6 (A) is the particle (sample 1) of light storage material 150 μ m, particle (sample 2) that Fig. 6 (B) is 3000 μ m of light storage material, Fig. 6 (C) is 5000 μ m of light storage material and the graph of a relation of brightness.
Under the different situation of the particle of light storage material, though think that the luminous quantitative change of a side of big particle diameter is big, but, the true confirmation, owing to the light generation scattering that a particle is sent with milky compaction material, so,, all send identical brightness as display device integral body as long as the component of the light storage material in the light-emitting device is identical.
In addition, when big particle diameter, though that the space between the light storage material becomes is big, often grain of rice shape ground is luminous,, the present invention shows, uses the scattering of light by milky compaction material generation, can obtain uniform light from display board integral body.
Fig. 7 (A) is to be to be that particle with light storage material 5000 μ m and 3000 μ m and 1000 μ m was by 5: 3: 2 mixed (sample 6) with the particle of light storage material 5000 μ m and 3000 μ m and 1000 μ m by 5: 4: 1 mixed (sample 5), Fig. 7 (C) with the particle of light storage material 3000 μ m and 5000 μ m by 1: 1 mixed (sample 4), Fig. 7 (B).
Sample 4～6 all plots the same curve map, shows in fluorescent lifetime and brightness much at one.In addition, the result of the sensory test of range estimation confirms that also sample 4～6 is all luminous equably from display board integral body.
Under the situation of the light storage material that has mixed different-grain diameter, though the luminous quantitative change of a side of big particle diameter is big, luminously become sparse, but, the present invention shows, because milky compaction material makes the light generation scattering of the various light quantities that light storage material sends, so all send identical brightness as display device.
In addition, can confirm that the brightness of sample 4～6 and above-mentioned sample 1～3 is the same.No matter this shows, be the particle diameter that changes light storage material, still makes up the light storage material of various particle diameters, as long as the total amount of light storage material is identical, with the light generation scattering that milky compaction material sends each particle of light storage material, will make integral body become even.
Show in the present embodiment that it is thick that baffle plate has a 7mm and since filling the amount of a large amount of light storage material, so all samples 1～6 was still being kept 10mcd/m after (10 hours) in 600 minutes in experience
2Above high brightness, very bright.If brightness maintains 5mcd/m
2More than, then very clear and definite ground identification generally speaking, ten people can confirm in the middle of ten people, but all samples 1～6 also 5mcd/m head and shoulders above after experience 800 minutes (13 hours 20 minutes)
2, can both keep sufficient brightness whole evening.
In addition, in the present embodiment, it is thick that the thickness of baffle plate has been made 7mm, and in sample 4 light storage material of 5000 μ m and 3000 μ m particle diameters is mixed, and carried out complanation by the thickness of baffle plate with round end scraper etc.Because the thickness of baffle plate is 7mm (7000 μ m), thereby the light storage material of 5000 μ m and 3000 μ m particle diameters is overlapped each other it is distributed equably.Because light storage material distributes equably and from the light of light storage material by the compaction material scattering, so can be luminous equably from display board integral body.In addition, if mix the light storage material of 1000 μ m particle diameters in the light storage material of 5000 μ m and 3000 μ m particle diameters, then the light storage material of 1000 μ m particle diameters is filled with in the mode in the space of the light storage material of filling up 5000 μ m and 3000 μ m particle diameters.Therefore, can further increase the total amount of the light storage material in the luminescent layer, thereby brightness height, the long display device of fluorescent lifetime can be provided.
Below, to the luminosity under the display device situation of having heated, the display device of light-emitting component is not set with above-mentioned manufacture method manufacturing, carry out the brightness test.Prepare in the light storage material the to turn blue light-storing material EZCM (イ-ジ-Block ラ イ ト Co., Ltd. system) of particle diameter of 150 μ m of coloured light makes identical 2 samples of display device work.
The compaction material that uses or the size of display device etc. are identical with embodiment 1.
Identical with embodiment 1, carry out rayed, measure the brightness of each sample.
To a sample (sample 11), keep that to be warmed to 40 ℃ state with warm braw constant, carry out vertical irradiation with fluorescent light simultaneously, the irradiation back is placed and is at room temperature carried out the brightness test.To another sample (sample 12), do not heat but place at room temperature, shine with fluorescent light simultaneously, and carry out the brightness test.
Fig. 8 (A), Fig. 8 (B) are respectively the luminosity and the time relation of sample 11, sample 12, the room temperature and the time relation of Fig. 8 (C) expression carrying out brightness test.
In the sample 11, compare the height of the brightness ratio sample 2 from about on-test to 300 minute with sample 2.Show sample 11 because be warmed to 40 ℃, so luminescence efficiency improves.Especially when the experiment beginning, sample 12 is about 600mcd/m
2, relative with it, in the sample 11, reach 1500mcd/m
2Very high high brightness.
Having a power failure etc. when emergent, though the person of being identified is necessary identification display device immediately, but carry out refuge guide etc., but show among the present invention, because it is luminescent layer is heated,, very effective to refuge guide etc. so original intensity is high especially.
Shown in Fig. 8 (C), though low in the room temperature of the testing laboratory that is used for brightness measuring, owing to heat in the sample 11, the brightness height also is effective in temperature low place like this.Need to prove that after 300 minutes, the brightness of sample 11 and sample 12 is about the same.No matter can think that this is because the temperature of which sample all becomes identical.If consider that the reduction of material temperature is slow under the high state of temperature, can think then that under the high state of room temperature the brightness of sample 11 and sample 12 changes to the identical time can be longer.
In the present embodiment, do not test though light-emitting component is not set, but because light guide plate and the driving fit of light-emitting component resettlement section form confined space in the display device of the present invention together, so this space utilization has fully promoted gas medium temperature from the heat that light-emitting component sends.Therefore, just can make light storage material hold light fully, simultaneously, light storage material can be warmed to about 40 ℃ with the light of light-emitting component.Thereby, can think to have reached with above-mentioned equal or than above-mentioned also high brightness.Can also think that light-emitting component resettlement section and light guide plate driving fit form confined space together, utilize the gas medium temperature that rises on this space that luminescent layer is incubated, can keep the luminous of high brightness more.
In addition, in the present invention, as long as to the light-emitting component supply capability, just the light that can utilize light-emitting component to send makes the light storage material limit hold light fully, carries out luminous simultaneously.And the heat of sending with light-emitting component is kept luminescent layer and is warmed to state about 40 ℃, so can ceaselessly keep above-mentioned original intensity from the luminosity of luminescent layer.In addition, though a light part of sending from light-emitting component is passed light guide plate and luminescent layer, because this light and the light addition of sending from luminescent layer, so just form very high high brightness display device.
Claims (9)
1, a kind of display device of using light storage material is characterized in that possessing:
Be provided with the transparent display board of character, symbol, pattern etc.; Reflecting plate; Be arranged on the baffle plate between described display board and the described reflecting plate with specific thickness; The luminescent layer of forming by the light storage material that is inserted into the space that described display board and described reflecting plate and described baffle plate constitute,
Nontransparent compaction material and light storage material that described luminescent layer will have viscosity mix, and have specific thickness,
Each particle of described light storage material is covered by described compaction material and evenly disperses in described packing material,
As making light from light storage material in described compaction material, scattering take place and making the whole uniformly light-emitting of described luminescent layer and the luminous equably backlight of described display board integral body is used.
2, the display device of using light storage material as claimed in claim 1 is characterized in that, described reflecting plate is made white plate, makes the light reflection from described light storage material, improves brightness.
3, the display device of using light storage material as claimed in claim 1 is characterized in that, uses milky compaction material as described compaction material, makes the light generation scattering from described light storage material.
4, the display device of using light storage material as claimed in claim 3 is characterized in that, uses calking agent or sealant in the described compaction material, and described compaction material covers each particle of described light storage material.
5, the display device of using light storage material as claimed in claim 1, it is characterized in that, described display board, described reflecting plate and described baffle plate are that resin system or glass are so that it keeps physical strength, make described luminescent layer not have physical strength, its heavy back is formed thereby fully mix light storage material.
6, the display device of using light storage material as claimed in claim 1 is characterized in that, between described luminescent layer and described reflecting plate light guide plate is set,
It possess light-emitting component resettlement section that the described light guide plate of driving fit is provided with and with the light-emitting component of described light guide plate opposite disposed in described light-emitting component resettlement section,
Described luminescent layer forms and the roughly the same size in described light-emitting component resettlement section, on one side continue to make described light storage material to hold light from the light of described light-emitting component, Yi Bian make described display board integral body luminous equably.
7, a kind of display device of using light storage material, it is characterized in that, possess: the first transparent display board, the second transparent display board, the luminescent layer that is arranged on baffle plate between described first display board and described second display board, forms by the light storage material that is inserted into the space that constitutes by described first display board, described second display board and described baffle plate with specific thickness
A side or both sides at described first display board, second display board are provided with character, symbol, pattern etc.,
Described luminescent layer has mixed nontransparent compaction material and the light storage material with viscosity, has specific thickness,
Each particle of described light storage material is covered by described compaction material and evenly disperses in described packing material,
Make described luminescent layer integral body luminous equably and the luminous equably backlight of described display board integral body is used as making light from light storage material in described compaction material, scattering take place.
8, a kind of manufacture method of having used the display device of light storage material is characterized in that, stick at the baffle plate of the thickness that will have regulation and mix the compaction material of filling light storage material and having viscosity in the space that constitutes on the reflecting plate,
With the smooth thickness that turns to described baffle plate of described luminescent layer of described light storage material and described compaction material,
After volatilization composition volatilization that makes described compaction material and sclerosis, keeping the elastic adhesive display board of compaction material.
9, the manufacture method of having used the display device of light storage material as claimed in claim 8, it is characterized in that, mix described light storage material and described compaction material, utilize the viscosity of described compaction material to cover each particle of described light storage material, it is disperseed in described compaction material equably, be filled into afterwards in the described space.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006348162A JP4083197B1 (en) | 2006-12-25 | 2006-12-25 | Display device using phosphorescent substance and manufacturing method thereof |
| JP348162/06 | 2006-12-25 | ||
| JP006582/07 | 2007-01-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101211524A CN101211524A (en) | 2008-07-02 |
| CN100559432C true CN100559432C (en) | 2009-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101262660A Expired - Fee Related CN100559432C (en) | 2006-12-25 | 2007-06-26 | The display device and the manufacture method thereof of light storage material have been used |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4083197B1 (en) |
| CN (1) | CN100559432C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101999983B1 (en) * | 2017-10-25 | 2019-07-15 | 우광티엔씨(주) | Luminescence Device and Its Manufacturing Method |
-
2006
- 2006-12-25 JP JP2006348162A patent/JP4083197B1/en not_active Expired - Fee Related
-
2007
- 2007-06-26 CN CNB2007101262660A patent/CN100559432C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP4083197B1 (en) | 2008-04-30 |
| JP2008158336A (en) | 2008-07-10 |
| CN101211524A (en) | 2008-07-02 |
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