CN102785555B - Skylight glass, lighting apparatus for vehicle and room light method - Google Patents
Skylight glass, lighting apparatus for vehicle and room light method Download PDFInfo
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- CN102785555B CN102785555B CN201210240794.XA CN201210240794A CN102785555B CN 102785555 B CN102785555 B CN 102785555B CN 201210240794 A CN201210240794 A CN 201210240794A CN 102785555 B CN102785555 B CN 102785555B
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Abstract
The present invention relates to skylight glass, lighting apparatus for vehicle and room light method.Described skylight glass comprises: glass body, comprising: the first opposed glassy layer and the second glassy layer; Be located at the interlayer between described first glassy layer and the second glassy layer, this interlayer is made up of high molecular polymer and pdlc film; The supply unit be connected with described pdlc film; And be arranged on described glass body periphery at least side light source with this at least side formed light entrance face.Adopt skylight glass of the present invention, lighting apparatus for vehicle and room light method, room light light source is organically incorporated in vehicle glass, by original point source of light by forming even, soft area source in the mode of vehicle glass incident sideways, to form good illumination and comfortable atmosphere in car.
Description
Technical field
The invention belongs to glass art, relate to a kind of skylight glass, also relate to the lighting apparatus for vehicle and room light method that are made up of vehicle glass.
Background technology
Current room light generally adopts the mode at roof mounted LED lamp.LED is a kind of serious light pollution source as the direct glare that point light source light-emitting body produces, in order to overcome the direct glare that point light source light-emitting body produces, various LED area light source progressively enters lighting field, such as by the straight-down negative LED area light source of adding diffusant fabrication techniques, with the area source of light guide plate fabrication techniques.
Planar light source uses usually used as backlight, is widely used in the fields such as Liquid Crystal Display, ultra-thin light-guiding lamp box, illuminated signboad, luminous photo frame, ultra-thin film viewing device.Traditional planar light source is primarily of diffusion sheet, prismatic lens, light guide plate, reflecting horizon and side incident light source composition, the wherein light of light source generation, inject through the side of light guide plate, again through the scattering of bottom surface of light guide plate scattering netted dot and the reflection in reflecting horizon, penetrate from the exiting surface of light guide plate, finally produce planar light source through diffusion sheet and prismatic lens.And adopting the LED plane light source brightness disproportionation of existing light guide plate, light efficiency is low.And adopting in the illuminating device of light guide plate at present, the particle that such as fluorescent material etc. strengthens scattering also must be added in light guide plate, the glass of exiting surface or lens surface also need to carry out frosted process, cause illuminating device when non-power status, cannot present all-transparent state.Guide-lighting efficiency depends primarily on the overall structure of light guide plate and the scattering principle of scattering machine preparative layer in addition.The guide-lighting efficiency mentioning traditional light guide plate in US Patent No. No.5396350 only has 10%-20%.Light extraction efficiency is not high, and making difficulty, cost are high.
Summary of the invention
The invention provides a kind of skylight glass, lighting apparatus for vehicle and room light method, to be separated with lighting source with the skylight glass overcoming prior art and the light source technical matters that is point source of light.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of skylight glass, comprising: glass body, comprising: the first opposed glassy layer and the second glassy layer; Be located at the interlayer between described first glassy layer and the second glassy layer, this interlayer is made up of high molecular polymer and pdlc film; The supply unit be connected with described pdlc film; And be arranged on described glass body periphery at least side light source with this at least side formed light entrance face.
Described light entrance face be formed at pdlc film with in the respective side of glass body at least side, or be formed on glass body with aim at described pdlc film with the respective side incident light of glass body at least side.
Described light source covers the whole side of the respective side of described pdlc film.
Described light source is multiple, is evenly arranged on the whole side of the respective side of pdlc film.
This skylight glass also comprises the reflective coating be located between described pdlc film and described first glassy layer, and the outside face of described second glassy layer is provided with high refractive index layer.
This skylight glass also comprises the reflective coating be located on described first glassy layer outside face, and the outside face of described second glassy layer is provided with high refractive index layer.
Described light source is the LED light source being located at the relative both sides of glass body.
Described light source is the LED light source being located at glass body side.
Liquid crystal in described pdlc film along the incident direction of light source by dredging to solid matter cloth.
Described light entrance face is formed on the first glassy layer, or is formed on the high molecular polymer between pdlc film and the first glassy layer.
This skylight glass also comprises the reflective coating be located on described first glassy layer partial outer face, and this reflective coating extends from the first glassy layer near described light entrance face Chu Xiang center.
The development length D of described reflective coating determines according to following formula: D=L*tan (42 °); Wherein L is the smaller value in light source to the first glassy layer outside face ultimate range and pdlc film to the first glassy layer outside face minor increment.
Described light source is the LED light source being located at the relative both sides of glass body.
Described light source is the LED light source being located at glass body side.
Described high molecular polymer is PVB or EVA.
Described pdlc film thickness is 0.1-2mm.
Described light entrance face is provided with low-index layer.
The outside face of described first glassy layer and/or the second glassy layer is provided with high refractive index layer.
Another kind of skylight glass, comprising: glass; Be fixed on the pdlc film of described glass inner side; The supply unit be connected with described pdlc film; And be arranged on pdlc film and/or glass periphery at least side light source with this at least side formed light entrance face.
Described light entrance face is formed at least side of pdlc film, or be formed on glass with aim at described pdlc film with the respective side incident light of glass at least side.
Described light source covers the whole side of at least side of described pdlc film, or covers the whole side of respective side of described pdlc film.
Described light source is multiple, is evenly arranged on the whole side of at least side of pdlc film, or is evenly arranged on the whole side of respective side of pdlc film.
This skylight glass also comprises the reflective coating being located at described glass outer side, and described PDLC is provided with high refractive index layer away from the surface of glass.
Described light source is the LED light source of the relative both sides being located at pdlc film and/or glass periphery.
Described light source is the LED light source of the side being located at pdlc film and/or glass periphery.
Described light entrance face is formed on glass.
This skylight glass also comprises the reflective coating be located in a described glass outer side part, and this reflective coating extends from glass near described light entrance face Chu Xiang center.
The development length D of described reflective coating determines according to following formula: D=L*tan (42 °); Wherein L is light source to glass outer surface ultimate range and pdlc film to the smaller value in glass outer surface minor increment.
Described light source is the LED light source of the relative both sides being located at pdlc film and/or glass periphery.
Described light source is the LED light source of the side being located at pdlc film and/or glass periphery.
Described pdlc film thickness is 0.1-2mm.
Described light entrance face is provided with low-index layer.
Described pdlc film by transparent paste adhesive at described glass inner side on the surface.
Described pdlc film is pasted onto described glass inner side on the surface by transparent Double-face adhesive film.
A kind of lighting apparatus for vehicle, comprising: the vehicle glass with pdlc film; The supply unit be connected with described pdlc film; Be arranged on the light source of at least side of vehicle glass periphery at least to form light entrance face in side at this; And control the control setup of described power supply and light source On/Off.
Described light entrance face is formed at least side of pdlc film, or be formed on vehicle glass with aim at described pdlc film with the respective side incident light of vehicle glass at least side.
Described light source covers the whole side of at least side of described pdlc film, or covers the whole side of respective side of described pdlc film.
Described light source is multiple, is evenly arranged on the whole side of at least side of pdlc film, or is evenly arranged on the whole side of respective side of pdlc film.
Described light source is the LED light source of the relative both sides being located at vehicle glass periphery.
Described light source is the LED light source of the side being located at vehicle glass periphery.
Described light entrance face is formed on vehicle glass, and incident light is by entering pdlc film after glass.
Vehicle glass also comprises the reflective coating be located at outside described vehicle glass in a part, and this reflective coating extends from vehicle glass near described light entrance face Chu Xiang center.
The development length D of described reflective coating determines according to following formula: D=L*tan (42 °); Wherein L is light source to glass exterior surface ultimate range and pdlc film to the smaller value in glass exterior surface minor increment.
Described light source is the LED light source of the relative both sides being located at vehicle glass periphery.
Described light source is the LED light source of the side being located at vehicle glass periphery.
Described pdlc film thickness is 0.1-2mm.
Described light entrance face is provided with low-index layer.
Described pdlc film by transparent paste adhesive at described glass inner side on the surface.
Described pdlc film is pasted onto described glass inner side on the surface by transparent Double-face adhesive film.
Also comprise the luminance sensor be connected with described control setup.
Described control setup comprises: the data receipt unit receiving the brightness data from described luminance sensor; Instruction output unit, is sent to described power supply and the switch of light source by On/Off instruction; And connect the data processing unit of described data receipt unit and instruction output unit respectively.
Described control setup also comprises the memory device storing predetermined luminance data, and by comparator that the brightness data received and this predetermined luminance data compare.
Correspondingly, a kind of room light method, comprises the steps: to provide the vehicle glass with pdlc film; Pdlc film applies voltage; While pdlc film gets on voltage, provide incident light at least one side of vehicle glass, to form planar exit light at vehicle glass inside face and/or outside face.
Room light method also comprises the steps: to cross in dark threshold value and car in the outer abundant threshold value of illumination of default car, car to cross bright threshold value; Gather the illumination brightness data in car and outside car; By cross in the illumination brightness data in the car of collection and outside car and the outer abundant threshold value of illumination of the car preset, car dark threshold value with in car bright threshold value compare, if the outer illumination brightness value of car is greater than the outer abundant threshold value of illumination of car, Switching power enters opening and closes incident light; If the outer illumination brightness value of car is less than the outer abundant threshold value of illumination of car, and in car, illumination brightness value is less than in car and crosses dark threshold value, and Switching power enters closed condition and opens incident light; If the outer illumination brightness value of car is less than the outer abundant threshold value of illumination of car, and in car, illumination brightness value is in car to cross in dark threshold value and car and crosses between bright threshold value, keeps power supply and the original state of incident light; If the outer illumination brightness value of car is less than the outer abundant threshold value of illumination of car, and in car, illumination brightness value is greater than in car and crosses bright threshold value, and power-on also progressively increases supply voltage value.
Described incident light adopts LED light source, and LED light source is positioned at the side of described pdlc film.
Liquid crystal in described pdlc film along the direction away from described LED by dredging to solid matter cloth.
Described light source is LED light source, is positioned at the relative both sides of described pdlc film.
Described LED light source covers the whole side of the relative both sides of pdlc film.
Described LED light source is multiple, is evenly arranged on the whole side of the relative both sides of pdlc film.
Liquid crystal in described pdlc film along the direction away from described LED by dredging to solid matter cloth.
This skylight glass also comprises the reflective coating be located in a described glass outer side part, and this reflective coating extends from glass near described light entrance face Chu Xiang center.
The development length D of described reflective coating determines according to following formula: D=L*tan (42 °); Wherein L is light source to glass exterior surface ultimate range and pdlc film to the smaller value in glass exterior surface minor increment.
Adopt above-mentioned skylight glass, lighting apparatus for vehicle and room light method, room light light source is organically incorporated in vehicle glass, by original point source of light by forming even, soft area source in the mode of vehicle glass incident sideways, to form good illumination and comfortable atmosphere in car.
Accompanying drawing explanation
Fig. 1 a-1b shows the cross sectional drawing of existing PDLC element, and the PDLC of Fig. 1 a is wherein in light scattering mode, and the PDLC of Fig. 1 b is in transparent mode;
Fig. 2 is the principle schematic of skylight glass of the present invention;
Fig. 3 is the schematic diagram of the first embodiment of skylight glass of the present invention, and wherein pdlc film is folded among layer glass;
Fig. 4 is the schematic diagram of the second embodiment of skylight glass of the present invention, and wherein pdlc film is directly attached on inner layer glass;
Fig. 5 is the embodiment schematic diagram of a kind of arrangement of LED in skylight glass of the present invention;
Fig. 6 a-6c shows pdlc film of the present invention other embodiment arranged in layer glass;
Fig. 7 shows the schematic diagram of the 3rd embodiment of skylight glass of the present invention, is the improvement to embodiment in Fig. 3;
Fig. 8 shows the schematic diagram of the 4th embodiment of skylight glass of the present invention, is the improvement to embodiment in Fig. 4;
Fig. 9 a-9b is the embodiment schematic diagram of liquid crystal arrangement in pdlc film of the present invention;
Figure 10 is the schematic diagram of the more preferred embodiment of skylight glass of the present invention, and further optimization has been carried out in LED wherein and setting;
Figure 11 a-11b is the schematic diagram of the more preferred embodiment of skylight glass of the present invention, and further optimization has been carried out in light incidence wherein and outgoing;
Figure 12 is the embodiment block diagram of the Lighting Control Assembly of vehicle glass of the present invention.
Detailed description of the invention
The present inventor finds after extensive and deep research, forming one after being mixed with high molecular polymer by pdlc film is located between two blocks of glass, or pdlc film is directly attached to glass side, incident by the light of LED, can obtain and only apply the skylight glass that voltage just can switch pellucidity and illumination condition; This skylight glass can also easily be combined with such as in-vehicle display system.Based on above-mentioned discovery, the present invention is accomplished.
Below in conjunction with accompanying drawing, the present invention is described in detail.Skylight glass all has certain radian usually, and non-fully tabular.The skylight glass gone out represented by accompanying drawing of the present invention is only as signal.
First the PDLC adopted in the present invention is described.Fig. 1 a-1b shows the cross sectional drawing of conventional PDLC element, and the PDLC of Fig. 1 a is wherein in light scattering mode, and the PDLC of Fig. 1 b is in transparent mode.In PDLC system, Nematic phase liquid crystal material 102 is dispersed in solid organic polymer matrix 104 with the drop of micron-scale, respectively there is at solid organic polymer matrix about 104 conductive layer 105 of the transparency electrode of such as ITO, under not making alive, the optical axis of each droplet is preferred orientation, and fine-grained optical axis is disordered orientation state.Because liquid crystal is strong optics and the material of dielectric anisotropy, its effective refractive index not with the index matching (differing larger) of matrix, incident ray can be opaque or translucent milky white state by strong scattering.When applying external electric field 106, as shown in Figure 1 b, the unification of nematic liquid crystals molecule optical axis direction is along direction of an electric field, and the ordinary index of refraction of liquid crystal particle and the ratio of refraction of matrix reach mating to a certain degree, light-transmissive matrix and transparent or translucent state.Removing external electric field, as shown in Figure 1a, liquid crystal particle is relative to each other located randomly, under the effect of base elastomer energy, return to again initial scattering state.Therefore, polymer dispersed liquid crystal film has electric control optical switch characteristic under the effect of electric field.Pdlc film is one of basic material of photovoltaic industry, and with other combine with technique, application market is wide, and Technology Potential is large, has without the need to using polaroid, without liquid crystal leakage problem, and the advantages such as manufacturing process is simple, with low cost.Its speed of response and penetrability 1 ~ 2 order of magnitude higher than TN.
Pdlc film is to the scattering power of light and LC droplet size, and poly-mer and liquid crystal blending ratio, liquid crystal birefringence rate is mated with refractive index polymer, and several respects factors such as the thickness of film are correlated with.Dimming glass utilizes existing pairglass manufacture method, light modulation film secure bond formed between the common float glass of two panels.
Fig. 2 shows the principle schematic of skylight glass of the present invention.As shown in Figure 2, there is between described pdlc film 130 and described outside glassy layer 11 the first polymeric layer 131 formed by described high molecular polymer; There is between described pdlc film 130 and described inner glass layer 12 the second polymer layer 132 formed by described high molecular polymer.The first polymeric layer 131 is wherein PVB layer or EVA layer; Described the second polymer layer 132 is PVB layer or EVA layer.The thickness of PVB layer or EVA layer is controlled, conventional as 0.7mm or 1.1mm.Pdlc film 130 is connected with power supply 106, by the switching between energising and power-off, realizes whole skylight glass and change between scattering states and transmission state.
Fig. 3 is the schematic diagram of the first embodiment of skylight glass of the present invention.As shown in Figure 3, this skylight glass comprises outside glassy layer 11, inner glass layer 12 and pdlc film 130 between outside glassy layer 11 and inner glass layer 12.There is between pdlc film 130 and described outside glassy layer 11 the first polymeric layer 131 formed by described high molecular polymer; There is between described pdlc film 130 and described inner glass layer 12 the second polymer layer 132 formed by described high molecular polymer.The first polymeric layer 131 is wherein PVB layer or EVA layer; Described the second polymer layer 132 is PVB layer or EVA layer.Pdlc film 130 is connected with power supply.The relative both sides of pdlc film 130 periphery are provided with outside LED21,22, LED21,22 and are provided with encapsulating structure 31,32.Also can consider completely to be only provided with LED in the side of pdlc film 130 periphery herein.LED has the advantages such as operating voltage is low, the life-span long, energy-conservation, is used as the side incident light source of planar light source.Now LED directly aims at pdlc film 130, and light directly can to enter in pdlc film 130 from light entrance face and from light-emitting face injection to realize illuminating effect.In the present embodiment, light entrance face refers to the outside face of light to the skylight glass of PDLC inside of LED illuminator, and light-emitting face refers to the outside face of light from the inner outgoing of skylight glass.In the present embodiment, pdlc film 130 covers the whole face area of glassy layer, and therefore light entrance face is directly formed at pdlc film 130 and is provided with on the side of LED.
Fig. 4 is the schematic diagram of the second embodiment of skylight glass of the present invention.The difference of the first embodiment shown in this embodiment and Fig. 3 is only that pdlc film 130 is directly attached on inner layer glass 12.LED21 now, 22 is still located at the both sides of this pdlc film 130, aims at pdlc film 130.Equally, also can consider completely to be only provided with LED in the side of PDLC130 herein.In the present embodiment, LED aims at independently pdlc film 130 and arranges, and therefore light entrance face is directly formed at pdlc film 130 and is provided with on the side of LED.When pdlc film 130 adopts the mode directly attached, skylight glass is not limited to pairglass, can adopt single-glass completely.Illustrate for Fig. 4, inner layer glass 12 wherein, glass outer 11 and PVB layer wherein or EVA layer 13 can substitute with single-glass.
Fig. 5 is the embodiment schematic diagram of a kind of arrangement of LED in skylight glass of the present invention.As shown in Figure 5, LED21 and LED22 has multiple respectively, is evenly arranged in pdlc film 130 both sides.Can certainly adopt the single LED of long strip type, its length is enough to the Width covering PDLC.
Skylight glass of the present invention, comprises three-decker, i.e. outside glassy layer 11, inner glass layer 12 and the interlayer comprising pdlc film 130 that is folded between glassy layer 11 outside this, inner glass layer 12.Skylight glass has a viewing area, and this viewing area refers to the face area of described glass.Interlayer is mixed by pdlc film 130 and high molecular polymer, and pdlc film 130 wherein forms light area.Because light area can cover whole viewing area, also can be the part in viewing area or a few part.Therefore pdlc film 130 of the present invention can also have various other configurations mode in pairglass, and this will describe in detail in Fig. 6 a-6c.
As shown in Figure 6 a, there is between described pdlc film 130 and described outside glassy layer 11 the 6th polymeric layer 136 formed by described high molecular polymer; There is between described pdlc film 130 and described inner glass layer 12 the 7th polymeric layer 137 formed by described high molecular polymer; There is between described outside glassy layer 11 and inner glass layer 12 the 8th polymeric layer 138 formed by described high molecular polymer; The 6th polymeric layer 136 now, the 7th polymeric layer 137 and the 8th polymeric layer 138 are one.The 6th polymeric layer 136 is wherein PVB layer or EVA layer; Described 7th polymeric layer 137 is PVB layer or EVA layer; Described 8th polymeric layer 138 is PVB layer or EVA layer.The power lead 1301,1302 connecting pdlc film 130 two electrodes can be provided with in this embodiment.Power lead 1301,1302 is connected to external power supply.
As shown in Fig. 6 b-6c, this skylight glass only needs room light, therefore not needing luminous outside to add reflective coating, specifically can select pitch-dark layer 14.Pitch-dark layer 14 only needs to cover the whole area of pdlc film 130 or exceedes the effect that this area can realize unilateral illumination.As shown in Figure 6 b be the example of the whole face area of pitch-dark layer 14 cover glass layer, shown in Fig. 6 c is the example that pitch-dark layer 14 only covers the whole area of PDLC, pitch-dark layer 14 wherein does not directly directly contact with pdlc film 130, also accompanies polymeric layer between the two.Can consider in such cases to make tinted laminated glass (tinted laminated glass).
According to the description of Fig. 6 a-6c, when pdlc film 130 is placed between pairglass, pdlc film 130 can only cover glass layer part surface amass, therefore light entrance face be formed at glass body poly-mer on and aim at the side of pdlc film 130 correspondence, with aim at described pdlc film with the respective side incident light of glass body at least side.Can certainly imagine, when the part surface of pdlc film 130 only cover glass layer amasss, outside glassy layer 11 and inner glass layer 12 can make nearly concave shape, now light entrance face is just formed at the office, joint portion of outside glassy layer 11 and inner glass layer 12 and aims at the side of pdlc film 130 correspondence, with aim at described pdlc film with the respective side incident light of glass body at least side.
Fig. 7 shows the schematic diagram of the 3rd embodiment of skylight glass of the present invention, improves embodiment in Fig. 3.As shown in Figure 7, the difference of this embodiment and the 3rd embodiment is, adds transparent sealant 41,42, high refractive index layer 6 and reflective coating 5 between ratio of refraction 1.4-1.6.Transparency sealant 41,42 is globality in order to strengthen LED and glass and PDLC thus increases the incident performance of light, between the vitreum side surface being arranged on LED and skylight glass, it can be the transparent sealant between EVA or PVB or other ratio of refraction 1.4-1.6.Reflective coating 5 is arranged on the lateral surface of outside glassy layer 11 to form unidirectional area source in car.Reflective coating 5 can be light shield layer, also can be the metal level of such as Al layer or Ag layer.Due to the present invention's employing is PDLC, and the transparent sealant 41,42 between the ratio of refraction 1.4-1.6 that this place exemplifies is only the further optimization of the illuminating effect to skylight glass, even if do not adopt these retes, does not also give prominence to the impact of illuminating effect.It should be noted that, although add transparent sealant 41,42 between LED and glass body, but the present invention does not change for the definition of light entrance face, still refer to and be formed on glass body, but not be formed on transparent sealant 41,42.
Fig. 8 shows the schematic diagram of the 4th embodiment of skylight glass of the present invention, improves embodiment in Fig. 4.As shown in Figure 8, the difference of this embodiment and the second embodiment is, transparent sealant 41,42, high refractive index layer 6 and reflective coating 5 between ratio of refraction 1.4-1.6.Transparency sealant 41,42 is globality in order to strengthen LED and glass and PDLC thus increases the incident performance of light, between the vitreum side surface being arranged on LED and skylight glass, it can be the transparent sealant between EVA or PVB or other ratio of refraction 1.4-1.6.Reflective coating 5 is arranged on the lateral surface of outside glassy layer 11 to form unidirectional area source in car.Reflective coating 5 can be light shield layer, also can be the metal level of such as Al layer or Ag layer.Due to the present invention's employing is PDLC, and the transparent sealant 41,42 between the ratio of refraction 1.4-1.6 that this place exemplifies is only the further optimization of the illuminating effect to skylight glass, even if do not adopt these retes, does not also give prominence to the impact of illuminating effect.Equally, although add transparent sealant 41,42 between LED and glass body, the present invention does not change for the definition of light entrance face, still refers to and is formed on glass body, but not is formed on transparent sealant 41,42.
Fig. 9 a-9b is the embodiment schematic diagram of liquid crystal arrangement in PDLC of the present invention.As can be seen from the figure, due to the present invention's employing is side entering optical source type illumination, and along with the increase of distance LED light source distance, the intensity of bright dipping can weaken to some extent.Be the most simply now by change liquid crystal arrangement density in PDLC come balanced go out light intensity.Such as, incident according to one-sided LED, then in PDLC, the arrangement of liquid crystal should meet and leaves the larger condition of the larger density of LED distance.According to be that bilateral LED is incident, then relative complex.In usual PDLC, the Raft cloth of liquid crystal is close in the middle of meeting, and both sides are dredged gradually.The distribution density of liquid crystal cell in control PDLC, better makes light be uniformly distributed; Can in technological process, when being exposed by control UV, the distribution of UV light realizes various arrangement.
Figure 10 is the schematic diagram of the more preferred embodiment of skylight glass of the present invention, and further optimization has been carried out in LED wherein and setting.As shown in Figure 10, in order to consider that the light that LED sends can, to dispersing, not only enter in the pdlc film 130 of anticipation everywhere, easily produce unnecessary light outgoing and weaken thus LED21,22 the efficiency of emergent light.In order to solve this problem, can consider around LED21,22, adopt the film 211,221 of shading to be attached on LED, only exposing the gap with PDLC thickness correspondence position.The film 211,221 of shading can adopt pitch-dark film.
Figure 11 a-11b is the schematic diagram of the more preferred embodiment of skylight glass of the present invention, and further optimization has been carried out in light incidence wherein and outgoing.Although earlier figures 7 and Fig. 8 glassy layer outside skylight has installed the reflective coating 5 of resistance light additional to improve the light efficiency of emergent light in car and to reach one-sided bright dipping in car, but because reflective coating 5 generally cannot accomplish all-transparent, effect when skylight glass is in pellucidity can be affected.Same, as shown in Figure 10 on LED, add photomask, although the problem of incident light also can be solved in theory completely, but because the thickness of PDLC is very little, some is even at 0.1mm to 0.2mm, to accurately on LED, reserve so little gap and aim at PDLC, manufacture craft exists difficulty.The present invention has done again following improvement further.Describe in detail respectively below in conjunction with Figure 11 a and Figure 11 b.
As shown in fig. lla, this skylight glass comprises outside glassy layer 11, inner glass layer 12 and the pdlc film between outside glassy layer 11 and inner glass layer 12 130.There is between PDLC130 and described outside glassy layer 11 the first polymeric layer 131 formed by described high molecular polymer; There is between described pdlc film 130 and described inner glass layer 12 the second polymer layer 132 formed by described high molecular polymer.The first polymeric layer 131 is wherein PVB layer or EVA layer; Described the second polymer layer 132 is PVB layer or EVA layer.Pdlc film 130 is connected with power supply.Encapsulating structure (not shown) is provided with outside LED21,22.LED21 herein, 22 can consider to be arranged on close outside glassy layer 11 and to stagger with pdlc film 130 to make the light from LED21,22 incidences can not directly enter pdlc film 130, but enter and be positioned at pdlc film 130 opposite exterior lateral sides, then entered into again in pdlc film 130 by the total internal reflection of light.If wish to realize skylight glass only one-sided luminescence in car, then can set up reflective coating 51,52 on the lateral surface of outside glassy layer 11.Reflective coating 51,52 extends the distance of a section very little from the edge of skylight glass to center, the concrete numerical value of this distance can draw according to after the size of LED and angle of incidence calculating.For example, the development length D of reflective coating 51,52 determines according to following formula: D=L*tan (42 °); Wherein L is that LED is to the smaller value in outside glassy layer 11 outside face ultimate range and pdlc film 130 to outside glassy layer 11 outside face minor increment.From figure, more intuitively statement is: L is the distance of (or LED and pdlc film 130 interface point, depend on which value is less) and outside glassy layer 11 bottom LED.Because the actual numerical value of this distance L is very little, therefore substantially the integral perspective of skylight glass and illuminating effect are not affected.
Similarly, as shown in figure lib, this skylight glass comprises outside glassy layer 11, inner glass layer 12, and pdlc film 130 is directly attached on inner glass layer 12.Described pdlc film 130 can be pasted onto on inner glass layer 12 on inner glass layer 12 or by transparent Double-face adhesive film by transparent paste adhesive.Pdlc film 130 is connected with power supply.Encapsulating structure (not shown) is provided with outside LED 21,22.LED 21,22 herein can consider that being located at the position of staggering with pdlc film 130 makes can not directly enter pdlc film 130 from the light of LED 21,22 incidence, but enter and be positioned at pdlc film 130 opposite exterior lateral sides, then entered into again in pdlc film 130 by the total internal reflection of light.If wish to realize skylight glass only one-sided luminescence in car, then can set up reflective coating 51,52 on the lateral surface of outside glassy layer 11.Reflective coating 51,52 extends the distance of a section very little from the edge of skylight glass to center, the concrete numerical value of this distance can draw according to after the size of LED and angle of incidence calculating.For example, the development length D of reflective coating 51,52 determines according to following formula: D=L*tan (42 °); Wherein L is that LED is to the smaller value in outside glassy layer 11 outside face ultimate range and pdlc film 130 to outside glassy layer 11 outside face minor increment.From figure, more intuitively statement is: L is the distance of (or LED and pdlc film 130 interface point, depend on which value is less) and outside glassy layer 11 bottom LED.Because the actual numerical value of this distance L is very little, therefore substantially the integral perspective of skylight glass and illuminating effect are not affected.
Under this kind of embodiment, skylight glass also can not adopt pairglass, and namely outside above-mentioned glassy layer 11, inner glass layer 12 and high polymer layer between the two 13 can substitute with single-glass.If now arrange reflective coating 51,52 equally, reflective coating 51,52 extends the distance of a section very little from the edge of skylight glass to center, and the concrete numerical value of this distance can draw according to after the size of LED and angle of incidence calculating.The development length D of reflective coating 51,52 determines according to following formula: D=L*tan (42 °); Wherein L is LED to glass exterior surface ultimate range and pdlc film to the smaller value in glass exterior surface minor increment.
Figure 12 is the embodiment block diagram of the Lighting Control Assembly of vehicle glass of the present invention.Vehicle glass can be skylight glass, also can be side window glass.As shown in figure 12, vehicle glass of the present invention can use together with control system, realizes best illuminating effect.Here control system can be integrated in vehicle control syetem easily.This control system 9 comprises: external data receiving element, can be cable data receiving element 901 also can be receive data by wireless unit 902; Switching command output unit 906; And connect the data processing unit 905 of described external data receiving element and switching command output unit 906 respectively.
Preferably, this control system 9 can also comprise memory device 904 and data generating unit 903.External data receiving element wherein can receive the data from light sensor 907, by switching command output unit 906 is sent to power supply 106 and LED 21,22 with the open and-shut mode of the on off state of Switching power 106 and LED 21,22 after being processed by data processing unit 905.
The basic step of the control means of illumination of vehicle glass of the present invention is: when PDLC is in scattering states, opens or closes LED and vehicle glass is switched between illumination and non-illumination state.
Consider that vehicle glass is in the sufficient situation of illumination, has the needs of high permeability, voltage can be applied when non-illumination state to PDLC and make vehicle glass be transmission state.
Specifically, vehicle glass can switch between following several state:
State one, by day in well-lit situation, power-on applies voltage to PDLC and makes vehicle glass be transmission state, and light can fully from vehicle window into the car.
State two, if light is excessively strong, also can weaken power line voltage or power cutoff makes vehicle glass be switched to scattering states or short-distance scatter state.
State three, if light is excessively dark, power cutoff makes vehicle glass be switched to scattering states and opens LED, makes vehicle glass enter illumination condition.
The switching of above-mentioned state is based on the Lighting Control Assembly shown in Figure 12 of the present invention.Manually operated mode can be adopted: bright and clear/excessively bright/cross dark time start master cock, by the switch of the switch and LED 21,22 of exporting to power supply 106 after data processing unit 905 recognition instruction, realize above-mentioned state and switch.
Also can consider to adopt the mode automatically switched: illumination brightness data in car is sent to by data processing unit 905 by light sensor 907, is provided with three luminance thresholds in data processing unit 905---cross in car in bright threshold value, car and cross dark threshold value and the outer abundant threshold value of illumination of car.Light sensor 907 is for the illumination brightness in inspection vehicle and outside car:
1) when the outer illumination brightness value of the car detected is greater than the outer abundant threshold value of illumination of car of setting, data processing unit 905 sends instruction Switching power 106 and enters opening and close LED, makes vehicle glass present transmission state, and extraneous light can be shining in car.
2) when the outer illumination brightness value of the car detected is less than the outer abundant threshold value of illumination of car of setting, and when in the car detected, illumination brightness value is less than the dark threshold value of mistake in car, data processing unit 905 sends instruction Switching power 106 and enters off state and open LED, makes vehicle glass present scattering states and luminous lighting.
3) when the outer illumination brightness value of the car detected is less than the outer abundant threshold value of illumination of car of setting, and illumination brightness value is between the interior dark threshold value excessively of car and the bright threshold value of the interior mistake of car in the car detected, data processing unit 905 does not send instruction, keeps vehicle glass state constant.
4) when the outer illumination brightness value of the car detected is less than the outer abundant threshold value of illumination of car of setting, and illumination brightness value is greater than the interior bright threshold value excessively of car in the car detected, data processing unit 905 sends instruction power-on 106 and progressively increases supply voltage value, and vehicle glass is progressively changed from scattering states to transmission state.
Illumination brightness value control system vehicle glass state in the outer illumination brightness value car of car
Be greater than the outer abundant threshold value/power-on of illumination of car
Close LED transmission state
Natural lighting
Be less than the outer abundant threshold value of illumination of car and be less than the interior dark threshold value power cutoff excessively of car
Open LED scattering states
Vehicle window throws light on
Be less than in the outer illumination abundant threshold value car of car to cross in dark threshold value and car and cross between bright threshold value/hold mode
Be less than the outer abundant threshold value of illumination of car to be greater than in car and to cross bright threshold value power-on and progressively increase supply voltage value scattering states and progressively change to transmission state
About the setting of above-mentioned multiple threshold value, consideration of the present invention sets suitable value according to different environmental changes.Because brightness brightness value characterizes, i.e. lm/m2 (i.e. lx), under normal circumstances, daytime is 10E+4lx, and the cloudy day is 10E+3lx, and dusk is 10E+2lx, dawn or dusk (hotel, restaurant), 0E+1lx, degree of depth dusk (arenas) is 10E+0lx, and the whole month, clear sky was 10E-1lx.Therefore adopt indoor illumination intensity be 10lx as critical value, but in view of different people be different to the sensitivity of light and acceptance level, therefore also can appropriate change.
Therefore, cross dark threshold value in car of the present invention and be located at about 10lx, cross bright threshold value and be located at about 14lx in car, the outer abundant threshold value of illumination of car is located at about 13lx.Below the manufacture craft of vehicle glass of the present invention is introduced.
General typical PDLC has strong anchoring effect to liquid crystal droplet due to poly-mer, the ordered state of interface liquid crystal molecule can be different from the ordered state of the liquid crystal molecule of droplet inside, cause scattering states (off state) film white not, clear state (on state) film is also bright not.
Along with the progress of technology, carry out modification to poly-mer, present scattering states is very white, and the PDLC product that driving voltage is very low also occurs, becomes Electronic Paper scheme contenders.Pdlc film is to the scattering power of light and LC droplet size, and poly-mer and liquid crystal blending ratio, liquid crystal birefringence rate is mated with refractive index polymer, and several respects factors such as the thickness of film are correlated with.Generally be optimized by experiment, determine these parameters.
In preparation process, if liquid crystal droplet spacing is too little, be then easily communicated with between liquid crystal droplet; Liquid crystal droplet spacing is too large, then certain liquid crystal droplet density diminishes.Under film thickness specified criteria, liquid crystal droplet density is large, and light is scattered often, and natural scattering is just strong; Antiferroelectric liquid crystal phase droplet density is little, and the number of times that light is scattered is few, and obvious scattering is just weak.
In preparation process; if liquid crystal content is few; it is short that liquid crystal separates out the time; liquid crystal droplet diameter is little; separate out insufficient, can be large by liquid crystal droplet density although liquid crystal droplet diameter is little, make OFF state dispersion effect good; but because poly-mer is to the strong anchoring effect of liquid crystal, the liquid crystal droplet of minor diameter brings the adverse effect that driving voltage increases and ON state is transparent not; If contrary liquid crystal content is many, it is long that liquid crystal separates out the time, separates out fully.Liquid crystal droplet diameter is large, although driving voltage can be made lower, the ON state transparency is good, and liquid crystal droplet density diminishes, and makes OFF state dispersion effect bad, also inadvisable.
The calculating of poly-mer and liquid crystal optimum mixture ratio example
Several accumulation mode provides poly-mer and liquid crystal blending ratio scope between 0.4B0.6 ~ 0.6B0.4, and the closely packed blending ratio of face-centered cubic is maximum, and the large-sized droplet of the how easy appearance of liquid crystal, makes scattering power decline; The blending ratio that simple cubic is piled up is minimum, and the size of the few droplet of liquid crystal is little, and the spacing of liquid crystal droplet becomes large, and scattering power also can be made to decline.In polymer dispersed liquid crystal film, liquid crystal droplet may be the mixture of various accumulation mode, and poly-mer and liquid crystal blending ratio optimum value are exactly 0.5B0.5 naturally on an average, namely about 1 to 1.
One) making of PDLC and encapsulation:
1) tin indium oxide (ITO) substrate pre-processing
(1) ITO surface evenness: ITO has been widely used in business-like display pannel manufacture at present, and it has the advantages such as high-transmission rate, low-resistivity and high work function.Generally speaking, utilize the ITO manufactured by radio frequency sputtering method (RF sputtering), it is bad and cause surface irregularity to be subject to technology controlling and process factor, and then produces most advanced and sophisticated material or the thrust on surface.The process of high-temperature calcination and recrystallization also can produce the protuberance layer of surface about 10 ~ 30nm in addition.The path formed between the particulate of these uneven flood can provide the chance of the direct directive negative electrode in hole, and these complicated paths can make drain current increase.Generally have three methods can solve the impact of this superficial layer: one be increase hole injection layer and hole transmission layer thickness to reduce drain current, the method is used for PLED and the thicker PDLC (~ 200nm) of cavitation layer.Two is by ito glass reprocessing, makes smooth surface.Three is use other film plating process to make surface evenness better.
(2) increase of ITO work function: when HIL is injected by ITO in hole, excessive potential energy missionary society produces Xiao Ji energy barrier, and hole is not easily injected, the potential energy difference therefore how reducing ITO/HIL interface then becomes the emphasis of ITO pre-processing.Generally we use O2-Plasma mode to increase the degree of saturation specific humidity of oxygen atom in ITO, to reach the object increasing work function.ITO work function after O2-Plasma process can be promoted to 5.2eV by original 4.8eV, with the work function of HIL closely.
Add aux. electrode, because PDLC is electric current driven unit, when outside line is long or meticulous, serious voltage gradient will be caused in external circuit, make the voltage drop really falling within PDLC assembly, cause panel luminous intensity to reduce.Due to ITO resistance excessive (10ohm/square), easily cause unnecessary outside consumption of power, increase by an aux. electrode and become to increase light output to reduce voltage gradient, reduced the shortcut of driving voltage.Chromium (Cr:Chromium) metal is the material being often used as aux. electrode most, and it has has the advantages such as larger selectivity to envirment factor good stability and to etching solution.But its resistance value is 2ohm/square when rete is 100nm, still belong to when some is applied excessive, therefore have when same thickness and then become another better selection of aux. electrode compared with aluminium (Al:Aluminum) metal (0.2ohm/square) of low-resistance value.But, therefore the high activity of aluminum metal also makes its problem having reliability aspect, and the assistant metal of many laminations is then suggested, as: Cr/Al/Cr or Mo/Al/Mo, but this type of technique increases complexity and cost, thus auxiliary electrode material be selected to one of emphasis in PDLC technique.
2) cathode technique
In the PDLC panel that height is resolved, isolate between trickle negative electrode and negative electrode, method generally used is mushroom configuration method (Mushroom structure approach), the negative photoresistance developing technique of the similar printing technology of this technique.In negative photoresistance developing process, many technologic mutagenic factors can affect quality and the yield of negative electrode.Such as, bulk resistor, specific inductance capacity, fine resolution, high Tg, low critical dimension (CD) loss and with ITO or other organic layer suitable stick together interface etc.
3) encapsulate
(1) absorbent material: the life cycle of general PDLC is subject to around aqueous vapor and oxygen to be affected and reduce.Aqueous vapor source is mainly divided into two kinds: one to be penetrate in assembly via external environment, another kind be in PDLC technique the aqueous vapor that absorbs by every layer of substance.Enter assembly to reduce aqueous vapor or get rid of by the aqueous vapor of adsorbing in technique, the material generally the most often used is water-absorption material (Desiccant).Desiccant can utilize the mode of chemiadsorption or physical adsorption to catch the hydrone moved freely, to reach the object removing aqueous vapor in assembly.
(2) Processes and apparatus exploitation: such as, in order to Desiccant is placed in cover plate and smoothly by cover plate and base boards, need carry out in vacuum environment or under cavity being filled with inactive gas, nitrogen.It should be noted that how to allow this two parts technique of cover plate and substrate be connected more efficient, reduce packaging technology cost and reduce packaging time to reach best volume production speed, become 3 large main objectives of packaging technology and equipment and technology development.
Two) PDLC after encapsulation inserts in vehicle glass.
Although understand spirit of the present invention for the ease of those of ordinary skill in the art; various detailed description of the invention is specifically disclosed in embodiments of the invention; those of ordinary skill in the art should understand, and follow simple change that spirit of the present invention makes and the behavior being applied to disclosed technical scheme will drop into the protection domain that claim of the present invention defines.
The all documents mentioned in the present invention are quoted as a reference all in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after having read above-mentioned instruction content of the present invention.
Claims (62)
1. a skylight glass, is characterized in that, comprising:
Glass body, comprising:
The first opposed glassy layer and the second glassy layer;
Be located at the interlayer between described first glassy layer and the second glassy layer, this interlayer is made up of high molecular polymer and pdlc film;
The supply unit be connected with described pdlc film; And
Be arranged on the light source of at least side of described glass body periphery at least to form light entrance face in side at this.
2. skylight glass as claimed in claim 1, it is characterized in that, described light entrance face be formed at pdlc film with in the respective side of glass body at least side, or be formed on glass body with aim at described pdlc film with the respective side incident light of glass body at least side.
3. skylight glass as claimed in claim 2, it is characterized in that, described light source covers the whole side of the respective side of described pdlc film.
4. skylight glass as claimed in claim 2, it is characterized in that, described light source is multiple, is evenly arranged on the whole side of the respective side of pdlc film.
5. skylight glass as claimed in claim 2, it is characterized in that, this skylight glass also comprises the reflective coating be located between described pdlc film and described first glassy layer, and the outside face of described second glassy layer is provided with high refractive index layer.
6. skylight glass as claimed in claim 2, it is characterized in that, this skylight glass also comprises the reflective coating be located on described first glassy layer outside face, and the outside face of described second glassy layer is provided with high refractive index layer.
7. skylight glass as claimed in claim 2, it is characterized in that, described light source is the LED light source being located at the relative both sides of glass body.
8. skylight glass as claimed in claim 2, it is characterized in that, described light source is the LED light source being located at glass body side.
9. skylight glass as claimed in claim 8, is characterized in that, the liquid crystal in described pdlc film along the incident direction of light source by dredging to solid matter cloth.
10. skylight glass as claimed in claim 1, it is characterized in that, described light entrance face is formed on the first glassy layer, or is formed on the high molecular polymer between pdlc film and the first glassy layer.
11. skylight glasses as claimed in claim 10, it is characterized in that, this skylight glass also comprises the reflective coating be located on described first glassy layer partial outer face, this reflective coating extends from the first glassy layer near described light entrance face Chu Xiang center.
12. skylight glasses as claimed in claim 11, it is characterized in that, the development length D of described reflective coating determines according to following formula: D=L*tan (42 °); Wherein L is the smaller value in light source to the first glassy layer outside face ultimate range and pdlc film to the first glassy layer outside face minor increment.
13. skylight glasses as claimed in claim 10, it is characterized in that, described light source is the LED light source being located at the relative both sides of glass body.
14. skylight glasses as claimed in claim 10, it is characterized in that, described light source is the LED light source being located at glass body side.
15. skylight glasses as claimed in claim 1, it is characterized in that, described high molecular polymer is PVB or EVA.
16. skylight glasses as claimed in claim 1, it is characterized in that, described pdlc film thickness is 0.1-2mm.
17. skylight glasses as claimed in claim 1, it is characterized in that, described light entrance face is provided with low-index layer.
18. skylight glasses as claimed in claim 1, it is characterized in that, the outside face of described first glassy layer and/or the second glassy layer is provided with high refractive index layer.
19. 1 kinds of skylight glasses, is characterized in that, comprising:
Glass;
Be fixed on the pdlc film of described glass inner side;
The supply unit be connected with described pdlc film; And
Be arranged on the light source of at least side of pdlc film and/or glass periphery at least to form light entrance face in side at this.
20. skylight glasses as claimed in claim 19, it is characterized in that, described light entrance face is formed at least side of pdlc film, or be formed on glass with aim at described pdlc film with the respective side incident light of glass at least side.
21. skylight glasses as claimed in claim 20, it is characterized in that, described light source covers the whole side of at least side of described pdlc film, or covers the whole side of respective side of described pdlc film.
22. skylight glasses as claimed in claim 20, it is characterized in that, described light source is multiple, is evenly arranged on the whole side of at least side of pdlc film, or is evenly arranged on the whole side of respective side of pdlc film.
23. skylight glasses as claimed in claim 20, it is characterized in that, this skylight glass also comprises the reflective coating being located at described glass outer side, and described PDLC is provided with high refractive index layer away from the surface of glass.
24. skylight glasses as claimed in claim 20, is characterized in that, described light source is the LED light source of the relative both sides being located at pdlc film and/or glass periphery.
25. skylight glasses as claimed in claim 20, it is characterized in that, described light source is the LED light source of the side being located at pdlc film and/or glass periphery.
26. skylight glasses as claimed in claim 19, it is characterized in that, described light entrance face is formed on glass.
27. skylight glasses as claimed in claim 26, it is characterized in that, this skylight glass also comprises the reflective coating be located in a described glass outer side part, and this reflective coating extends from glass near described light entrance face Chu Xiang center.
28. skylight glasses as claimed in claim 27, it is characterized in that, the development length D of described reflective coating determines according to following formula: D=L*tan (42 °); Wherein L is light source to glass outer surface ultimate range and pdlc film to the smaller value in glass outer surface minor increment.
29. skylight glasses as claimed in claim 26, is characterized in that, described light source is the LED light source of the relative both sides being located at pdlc film and/or glass periphery.
30. skylight glasses as claimed in claim 26, it is characterized in that, described light source is the LED light source of the side being located at pdlc film and/or glass periphery.
31. skylight glasses as claimed in claim 19, it is characterized in that, described pdlc film thickness is 0.1-2mm.
32. skylight glasses as claimed in claim 19, it is characterized in that, described light entrance face is provided with low-index layer.
33. skylight glasses as claimed in claim 19, is characterized in that, described pdlc film by transparent paste adhesive at described glass inner side on the surface.
34. skylight glasses as claimed in claim 19, it is characterized in that, described pdlc film is pasted onto described glass inner side on the surface by transparent Double-face adhesive film.
35. 1 kinds of lighting apparatus for vehicle, is characterized in that, comprising:
There is the vehicle glass of pdlc film;
The supply unit be connected with described pdlc film;
Be arranged on the light source of at least side of vehicle glass periphery at least to form light entrance face in side at this; And
Control the control setup of described power supply and light source On/Off.
36. lighting apparatus for vehicle as claimed in claim 35, it is characterized in that, described light entrance face is formed at least side of pdlc film, or be formed on vehicle glass with aim at described pdlc film with the respective side incident light of vehicle glass at least side.
37. lighting apparatus for vehicle as claimed in claim 36, it is characterized in that, described light source covers the whole side of at least side of described pdlc film, or covers the whole side of respective side of described pdlc film.
38. lighting apparatus for vehicle as claimed in claim 36, it is characterized in that, described light source is multiple, is evenly arranged on the whole side of at least side of pdlc film, or is evenly arranged on the whole side of respective side of pdlc film.
39. lighting apparatus for vehicle as claimed in claim 35, is characterized in that, described light source is the LED light source of the relative both sides being located at vehicle glass periphery.
40. lighting apparatus for vehicle as claimed in claim 35, it is characterized in that, described light source is the LED light source of the side being located at vehicle glass periphery.
41. lighting apparatus for vehicle as claimed in claim 35, it is characterized in that, described light entrance face is formed on vehicle glass, and incident light is by entering pdlc film after glass.
42. lighting apparatus for vehicle as claimed in claim 41, is characterized in that, also comprise the reflective coating be located at outside described vehicle glass in a part, this reflective coating extends from vehicle glass near described light entrance face Chu Xiang center.
43. lighting apparatus for vehicle as claimed in claim 42, it is characterized in that, the development length D of described reflective coating determines according to following formula: D=L*tan (42 °); Wherein L is light source to vehicle glass exterior surface ultimate range and pdlc film to the smaller value in vehicle glass exterior surface minor increment.
44. lighting apparatus for vehicle as claimed in claim 41, is characterized in that, described light source is the LED light source of the relative both sides being located at vehicle glass periphery.
45. lighting apparatus for vehicle as claimed in claim 41, it is characterized in that, described light source is the LED light source of the side being located at vehicle glass periphery.
46. lighting apparatus for vehicle as claimed in claim 41, it is characterized in that, described pdlc film thickness is 0.1-2mm.
47. lighting apparatus for vehicle as claimed in claim 41, it is characterized in that, described light entrance face is provided with low-index layer.
48. lighting apparatus for vehicle as claimed in claim 41, is characterized in that, described pdlc film passes through transparent paste adhesive on described vehicle glass inner surface.
49. lighting apparatus for vehicle as claimed in claim 41, it is characterized in that, described pdlc film is pasted onto on described vehicle glass inner surface by transparent Double-face adhesive film.
50. lighting apparatus for vehicle as claimed in claim 35, is characterized in that, also comprise the luminance sensor be connected with described control setup.
51. lighting apparatus for vehicle as claimed in claim 50, it is characterized in that, described control setup comprises: the data receipt unit receiving the brightness data from described luminance sensor;
Instruction output unit, is sent to described power supply and the switch of light source by On/Off instruction; And connect the data processing unit of described data receipt unit and instruction output unit respectively.
52. lighting apparatus for vehicle as claimed in claim 51, it is characterized in that, described control setup also comprises the memory device storing predetermined luminance data, and by comparator that the brightness data received and this predetermined luminance data compare.
53. 1 kinds of room light methods, comprise the steps:
The vehicle glass with pdlc film is provided;
Pdlc film applies voltage;
While pdlc film gets on voltage, provide incident light at least one side of vehicle glass, to form planar exit light at vehicle glass inside face and/or outside face.
54. room light methods as claimed in claim 53, is characterized in that, also comprise the steps: to cross in dark threshold value and car in the outer abundant threshold value of illumination of default car, car to cross bright threshold value;
Gather the illumination brightness data in car and outside car;
By cross in the illumination brightness data in the car of collection and outside car and the outer abundant threshold value of illumination of the car preset, car dark threshold value with in car bright threshold value compare,
If the outer illumination brightness value of car is greater than the outer abundant threshold value of illumination of car, Switching power enters opening and closes incident light;
If the outer illumination brightness value of car is less than the outer abundant threshold value of illumination of car, and in car, illumination brightness value is less than in car and crosses dark threshold value, and Switching power enters closed condition and opens incident light;
If the outer illumination brightness value of car is less than the outer abundant threshold value of illumination of car, and in car, illumination brightness value is in car to cross in dark threshold value and car and crosses between bright threshold value, keeps power supply and the original state of incident light;
If the outer illumination brightness value of car is less than the outer abundant threshold value of illumination of car, and in car, illumination brightness value is greater than in car and crosses bright threshold value, and power-on also progressively increases supply voltage value.
55. room light methods as described in claim 53 or 54, is characterized in that, described incident light adopts LED light source, and LED light source is positioned at the side of described pdlc film.
56. room light methods as claimed in claim 55, is characterized in that, liquid crystal in described pdlc film along the direction away from described LED by dredging to solid matter cloth.
57. room light methods as described in claim 53 or 54, is characterized in that, described incident light adopts LED light source, and described LED light source is positioned at the relative both sides of described pdlc film.
58. room light methods as claimed in claim 57, is characterized in that, described LED light source covers the whole side of the relative both sides of pdlc film.
59. room light methods as claimed in claim 57, it is characterized in that, described LED light source is multiple, is evenly arranged on the whole side of the relative both sides of pdlc film.
60. room light methods as claimed in claim 57, is characterized in that, liquid crystal in described pdlc film along the direction away from described LED by dredging to solid matter cloth.
61. room light methods as claimed in claim 53, it is characterized in that, this vehicle glass also comprises the reflective coating be located in a described glass outer side part, and this reflective coating extends from glass near described incident light Chu Xiang center.
62. room light methods as claimed in claim 61, it is characterized in that, the development length D of described reflective coating determines according to following formula: D=L*tan (42 °); Wherein L is light source to glass exterior surface ultimate range and pdlc film to the smaller value in glass exterior surface minor increment.
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| CN103963372A (en) * | 2014-04-30 | 2014-08-06 | 中山市格兰特实业有限公司 | LED pattern glass and manufacturing method |
| CN105050297B (en) * | 2015-09-09 | 2018-03-27 | 上海玮舟微电子科技有限公司 | Light adjusting system and method based on light modulation film |
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| GB2607859B (en) * | 2021-04-13 | 2023-09-20 | Innerscene Ltd | Optical display device |
| CN113232496B (en) * | 2021-05-25 | 2022-07-19 | 福耀玻璃工业集团股份有限公司 | Vehicle window assembly and vehicle |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5396350A (en) * | 1993-11-05 | 1995-03-07 | Alliedsignal Inc. | Backlighting apparatus employing an array of microprisms |
| EP0864904A1 (en) * | 1996-09-02 | 1998-09-16 | Seiko Epson Corporation | Liquid cristal panel and electronic apparatus using the same |
| CN2879337Y (en) * | 2005-02-07 | 2007-03-14 | 杨帅利 | Luminescent vehicle glass |
| CN101034225A (en) * | 2007-03-06 | 2007-09-12 | 孙润文 | Display device, handset with same, computer and TV set |
| CN201242630Y (en) * | 2008-06-11 | 2009-05-20 | 北京众智同辉科技有限公司 | Electric liquid crystal atomization glass |
| CN201600528U (en) * | 2009-12-25 | 2010-10-06 | 比亚迪股份有限公司 | Automobile smart glass |
| CN202896252U (en) * | 2012-07-11 | 2013-04-24 | 法国圣戈班玻璃公司 | Skylight glass and vehicle-purpose lighting device |
-
2012
- 2012-07-11 CN CN201210240794.XA patent/CN102785555B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5396350A (en) * | 1993-11-05 | 1995-03-07 | Alliedsignal Inc. | Backlighting apparatus employing an array of microprisms |
| EP0864904A1 (en) * | 1996-09-02 | 1998-09-16 | Seiko Epson Corporation | Liquid cristal panel and electronic apparatus using the same |
| CN2879337Y (en) * | 2005-02-07 | 2007-03-14 | 杨帅利 | Luminescent vehicle glass |
| CN101034225A (en) * | 2007-03-06 | 2007-09-12 | 孙润文 | Display device, handset with same, computer and TV set |
| CN201242630Y (en) * | 2008-06-11 | 2009-05-20 | 北京众智同辉科技有限公司 | Electric liquid crystal atomization glass |
| CN201600528U (en) * | 2009-12-25 | 2010-10-06 | 比亚迪股份有限公司 | Automobile smart glass |
| CN202896252U (en) * | 2012-07-11 | 2013-04-24 | 法国圣戈班玻璃公司 | Skylight glass and vehicle-purpose lighting device |
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