CN204143067U - A kind of head-up-display system - Google Patents
A kind of head-up-display system Download PDFInfo
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- CN204143067U CN204143067U CN201420593200.8U CN201420593200U CN204143067U CN 204143067 U CN204143067 U CN 204143067U CN 201420593200 U CN201420593200 U CN 201420593200U CN 204143067 U CN204143067 U CN 204143067U
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
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- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
- B32B17/1022—Metallic coatings
- B32B17/10229—Metallic layers sandwiched by dielectric layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
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- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
Landscapes
- Instrument Panels (AREA)
Abstract
The utility model relates to new line display technique field, particularly relates to the head-up-display system on a kind of automobile.This head-up-display system comprises projection light source and laminated glass, also comprises transparent nano film, and transparent nano film comprises at least two dielectric layers and at least one metal level; Projection light source is for generation of P polarized light, and described P polarized light incides the surface away from middle diaphragm on interior glass plate, and its incident angle is 42 ~ 72 degree, and transparent nano film can the described P polarized light of reflecting part incidence.The utility model significantly can promote display quality, is applicable to high-definition image display; Structure and energy is very simple, and only need install the projection light source that can produce P polarized light on the vehicles of front windshield being provided with transparent nano film just can realize high-quality new line Presentation Function, and therefore cost is very low; Structure composition in conjunction with different transparent nano films can realize monochromatic display, the even full-color display of multicolor displaying.
Description
Technical field:
The utility model relates to new line display technique field, particularly relates to the head-up-display system on a kind of automobile.
Background technology:
Along with the development of science and technology, display (HUD, the Head Up Display) system that comes back is used more and more on automobile.Head-up-display system on automobile can by important running information, such as the information of speed, engine revolution, oil consumption, tire pressure, navigation and external smart machine is presented in the visual field of driver on front windshield in real time, driver is made to bow like this, just can see running information, thus avoid disperseing the notice to road ahead; Make driver need not regulate eyes between the observation road in a distant place and instrument nearby simultaneously, the fatigue of eyes can be avoided, greatly can strengthen traffic safety and improve driving experience.
The realization of current new line display technique is mainly through luminescence imaging and projection imaging two kinds of modes, wherein projection imaging utilizes shield glass itself or the extra optical element arranged to carry out Projection Display, and to adopt front windshield to carry out reflective projection image be the simplest mode of structure.General front windshield is laminated glass, it is made up of sandwiched thermoplastic polymer film sheet (as polyvinyl butyral and PVB) in the middle of the glass substrate that at least two panels has a certain curvature, can reflect when the light that the projection light source of head-up-display system sends two of contacting with air through laminated glass are surperficial, reflected image on two surfaces can produce skew thus form two ghost images mutually disturbed, particularly can be more obvious when the thickness of laminated glass thicker (generally more than 3mm), this greatly limits the sharpness of projection-display image.
For solving the ghost problems of head-up-display system on shield glass, in prior art, there is some schemes.Such as patent CN101038349 (A), US2002172804 (A1) and US2007148472 (A1) a solution disclosed wherein adopt the polymer membrane of wedge shape as the middle layer of laminated glass, the upper and lower thickness of laminated glass is made to be wedge shape change, thus the reflected image on make driver see two surfaces overlaps substantially, finally eliminates ghost problems significantly.With technique scheme similar be that local adopts the glass substrate of wedge thickness, it discloses in patent US6414796 (B1).But these technical schemes exist following shortcoming: 1, fail thoroughly to eliminate ghost image, be not suitable for high-definition image display; 2, need the pvb film adopting special requirement, its price is 7 ~ 10 times of common pvb film, and technology difficulty is high, makes materials and process cost very high; 3, responsive to the optical design of vehicle, need redesign for the front windshield of concrete vehicle.
A solution is also had to be at the surface of laminated glass or the middle optical functional layer that can change direction of polarized light or can the reflective polarizer of reflected P polarized light or S polarized light of arranging, and the P polarized light sent in conjunction with the projection light source of head-up-display system or S polarized light incident with special angle (as Brewster angle), thus utilize laminated glass to the reflection characteristic of different polarization light to eliminate the reflected image on certain surface as far as possible, finally eliminate ghost image.This technical scheme is at EP0836108 (A2), EP0844507 (A1), US6327089 (B1), CN1969219 (A), US7355796 (B2), CN101151568 (A), US7839574 (B2), all have open in the patents such as CN1732404 (A) and CN102256910 (A), but the prerequisite that this technical scheme realizes must set up extra optical functional layer or reflective polarizer the local of laminated glass (namely come back display view field), this just must improve material cost and technology difficulty, the multiple layer polymer P polarizing mirror number of plies such as, disclosed in CN1732404 (A) is up to tens of extremely hundreds of layer, the overall homogeneity of front windshield is also destroyed simultaneously, reduces aesthetics, in addition, cohesive strength laminated glass locally being arranged the region of optical functional layer or reflective polarizer may reduce thus cause potential safety hazard, and the visible light transmissivity of partial optical functional layer or reflective polarizer is on the low side, thus the visual field of driver or the outward appearance of front windshield are had an impact.
In addition, also exist in prior art by setting up the brightness that antireflection (AR) film reduces the reflected image that one of them interface is formed on the surface at laminated glass, such as, in patent US7864431 (B2), disclose the technical scheme being arranged on by antireflecting film on surface that laminated glass contacts with air or setting up Low emissivity (Low-E) plated film on the surface that antireflecting film is not set.But there is following shortcoming in this technical scheme: 1, antireflecting film is deposited on the surface that laminated glass contacts with air, particularly be deposited on laminated glass on the surface outside car time, it is difficult to bear severe environment for use, the friction of such as acid rain, dust, wiper or alkaline cleaner etc.; 2, antireflecting film structure is comparatively complicated, particularly there is the antireflecting film that the almost nil and low angle of good broadband anti-reflection, reflectivity and high angle all have good appearance character and often need deposit multilayer, its gross thickness can reach hundreds of nanometer, so be not suitable for extensive deposition on shield glass; 3, antireflecting film is difficult to eliminate ghost image completely, particularly still exists light blue or lilac reflective when high angle is observed; 4, be deposited on laminated glass and can cover water membrane when the antireflecting film on the surface outside car runs into rainy day, now anti-reflective effect can significantly reduce, and finally causes ghost phenomena serious; 5, antireflecting film is arranged on the surface that laminated glass contacts with air, can not eliminate the reflected image produced on the low-emission coated interface set up, or there is ghost phenomena to a certain degree.
Similarly, also macroscopic ghost phenomena can be reduced by the mode strengthening the reflected light formed on the surface that laminated glass contacts with air, such as, on component market common adhesive film type HUD projector, it pastes semi-transparent reflective film in advance in HUD view field; Or the multilayered medium that high and low refractive index material replaces is deposited upon on a surface that laminated glass contacts with air as patent US6137630 (A) discloses, thus strengthen the intensity of the reflected light of surface in contact, and intensity of reflected light on another one surface is substantially constant, the reflected image therefore enabling human eye observe mainly comes from the reflected light of coated surface.Obviously, this technical scheme destroys the overall homogeneity of shield glass or the permeability of outward appearance on the one hand, does not also fundamentally eliminate ghost phenomena on the other hand.
In automobile head-up-display system, except above-mentioned ghost problems must be resolved, also need to enable show image have multicolor displaying ability as much as possible, to meet the display of multiple different frame.Such as Chinese patent CN2694293 (Y) has the narrow wavelength reflection bands of red, green, blue three primary colours by the rete being coated with plural layer different refractivity on base material to realize HUD; Or the multilayered medium that high and low refractive index material replaces is deposited upon on a surface that laminated glass contacts with air as patent US6137630 (A) discloses to realize full-color display.In reality, if full-color display requirement can not meet, then need to ensure as far as possible the green reflection that human eye is the most responsive.
Utility model content:
Technical problem to be solved in the utility model is the shortcoming existed for above-mentioned prior art, provide a kind of can the clear head-up-display system simple and with low cost without ghost image, multicolor displaying, structural manufacturing process.
The technical scheme in the invention for solving the technical problem is: a kind of head-up-display system, comprise projection light source and laminated glass, the middle diaphragm that described laminated glass comprises interior glass plate, outer glass plate and is clipped between interior glass plate and outer glass plate, it is characterized in that: also comprise transparent nano film, described transparent nano film comprises at least two dielectric layers and at least one metal level, each metal level is between two dielectric layers, and the refringence of described interior glass plate and outer glass plate and described middle diaphragm is not more than 0.1; Described projection light source is for generation of P polarized light, and described P polarized light incides the surface away from middle diaphragm on interior glass plate, and its incident angle is 42 ~ 72 degree, and described transparent nano film can the described P polarized light of reflecting part incidence.
Further, described metal level is the alloy-layer of silver layer or argentiferous.
Further, the incident angle of described P polarized light is 55 ~ 70 degree.
Further, the refringence of described interior glass plate and outer glass plate and described middle diaphragm is not more than 0.05.
Further, described transparent nano film be arranged on interior glass plate and middle film contact surface on or be arranged on the surface of outer glass plate and middle film contact.
Further, described transparent nano film is arranged on a slice polymer membrane, the refringence of described polymer membrane and described interior glass plate and outer glass plate is not more than 0.1, and the polymer membrane being provided with transparent nano film is between interior glass plate and outer glass plate or the surface be arranged on away from middle diaphragm on interior glass plate.
Further, the color of the P polarized light of described projection light source generation is selected from least one in redness, green and blueness.
Preferably, when described transparent nano film comprises two metal levels, the color of the P polarized light that described projection light source produces is selected from least one in green and blueness.
Further, an auxiliary diaphragm is also set up when transparent nano film in head-up-display system comprises two metal levels or three metal levels, described auxiliary diaphragm comprises at least a slice auxiliary polyalcohol diaphragm and the auxiliary transparent nano film comprising a metal level be arranged on auxiliary polyalcohol diaphragm, described auxiliary diaphragm is positioned at the incident area of described P polarized light, and the auxiliary transparent nano film in described auxiliary diaphragm and the distance between the described transparent nano film comprising two metal levels or comprise three metal levels are not more than 350 μm.
Preferably, the auxiliary transparent nano film in described auxiliary diaphragm and the distance between the described transparent nano film comprising two metal levels or comprise three metal levels are not more than 100 μm.
The utility model is owing to taking technique scheme, and it has following beneficial effect:
Head-up-display system described in the utility model, P polarized light is utilized to be incident on reflectivity in glass and Air Interface lower, and transparent nano film can reflecting part P polarized light characteristic thus eliminate visual ghost phenomena completely, significantly can promote display quality, be applicable to high-definition image display; Simultaneously, Structure and energy is very simple, namely without the need to additionally arranging special optical element, only need install the projection light source that can produce P polarized light on the vehicles of front windshield being provided with transparent nano film just can realize high-quality new line Presentation Function, and therefore cost is very low; Further, the structure composition in conjunction with different transparent nano films can realize monochromatic display, the even full-color display of multicolor displaying.
Accompanying drawing illustrates:
Fig. 1 is the partial sectional view of head-up-display system described in the utility model;
Fig. 2 A and 2B is the partial sectional view that the transparent nano film in head-up-display system is positioned at the 3rd surface or the 4th surface;
Fig. 3 A, 3B, 3C and 3D are the partial sectional view that the polymer membrane being provided with transparent nano film in head-up-display system is positioned at diverse location on laminated glass;
Fig. 4 is the reflectance spectrum figure that P polarized light described in the utility model incides on different head-up-display system respectively;
Fig. 5 is that the head-up-display system of simulation rainy day driving environment described in the utility model is to the reflectance spectrum figure of P polarized light;
Fig. 6 is the partial sectional view setting up the head-up-display system of auxiliary diaphragm described in the utility model;
Fig. 7 is the reflectance spectrum figure of head-up-display system to P polarized light setting up auxiliary diaphragm described in the utility model;
Fig. 8 A, Fig. 8 B are respectively P polarized light described in the utility model with new line display image during 57 degree, 66 degree incidence;
Fig. 8 C is the image of the head-up-display system of common laminated glass.
Embodiment:
Below in conjunction with accompanying drawing, content of the present utility model is described further.
As shown in Figure 1, head-up-display system described in the utility model comprises projection light source 1 and laminated glass 2, described laminated glass 2 comprises interior glass plate 21, outer glass plate 22 and the middle diaphragm 23 be clipped between interior glass plate 21 and outer glass plate 22, in order to eliminate ghost phenomena, described head-up-display system also comprises transparent nano film 3, described transparent nano film 3 comprises at least two dielectric layers and at least one metal level, each metal level is between two dielectric layers, described projection light source 1 is for generation of P polarized light 11, described P polarized light 11 incides on interior glass plate 21 away from the surface 211 of middle diaphragm 23 i.e. first surface 211, its incident angle is 42 ~ 72 degree, described transparent nano film 3 can the described P polarized light 11 of reflecting part incidence.Further, in order to eliminate the impact of laminated glass 2 inside on the P polarized light 11 of incidence, preferred described interior glass plate 21 and outer glass plate 22 are not more than 0.1 with the refringence of described middle diaphragm 23.It is lower that the utility model utilizes P polarized light 11 to be incident on reflectivity in glass and Air Interface, particularly with Brewster angle θ
b(57 degree) do not reflect time incident, and transparent nano film 3 can reflecting part P polarized light 11 characteristic thus eliminate visual ghost phenomena completely
In FIG, the P polarized light 11 of projection light source 1 generation is with Brewster angle θ
b(57 degree) incide away from the surface 211 of middle diaphragm 23 on interior glass plate 21, and according to the characteristic of P polarized light, on first surface 211, P polarized light 11 does not reflect, and only produce the first refractive light 12 entered in laminated glass 2, inner at laminated glass 2, it is that their refractive index is very close that refringence due to middle diaphragm 23 and described interior glass plate 21 and outer glass plate 22 is not more than 0.1, so first refractive light 12 does not occur to reflect on the surface that middle diaphragm 23 contacts with interior glass plate 21 or outer glass plate 22 and the direction of propagation is substantially constant, until described first refractive light 12 arrives on described transparent nano film 3, metal level in described transparent nano film 3 can form the first reflected light 13 by reflecting part first refractive light 12, part first refractive light 12 is also had to continue to propagate on the outer glass plate 22 of arrival away from the surface 221 i.e. second surface 221 of middle diaphragm 23 through described transparent nano film 3, due to the very thin thickness of described transparent nano film 3, so also substantially constant through the direction of propagation of the part first refractive light 12 of described transparent nano film 3, according to the reversibility of light transmition, the part first refractive light 12 arrived away from the surface 221 of middle diaphragm 23 on outer glass plate 22 does not also reflect on second surface 221, only produce the second refract light 14 entered in air, wherein the first reflected light 13 is propagated and is arrived on first surface 211, and according to the reversibility of light transmition, the first reflected light 13 does not also reflect on first surface 211, only produces the third reflect light 15 that observer 16 can identify.From the travel path of above P polarized light 11, the display image that observer 16 can identify only from one of third reflect light 15, so fundamentally eliminates ghost phenomena, significantly improves display quality, is applicable to high-definition image display.
Wherein, described projection light source 1 is connected and exports related text, image information such as speed, engine revolution, oil consumption, tire pressure, navigation, night vision in the mode of P polarized light 11 and wait until on laminated glass 2 as the pertinent instruments instrument of display and the automobile of the information such as word, image, external sensor or external smart machine etc., thus arrive observed by the observer 16 in car.Described projection light source 1 is element well known by persons skilled in the art, includes but not limited to laser, light emitting diode (LED), LCDs (LCD), electroluminescence (EL), cathode-ray tube (CRT) (CRT), vacuum fluorescent display（VFD） (VFD), collimating mirror, spherical correction mirror, convex lens, concavees lens, catoptron and/or polariscope etc.Meanwhile, the position of projection light source 1 and incident angle are adjustable, with diverse location in applicable car or observer 16 highly.
Wherein, laminated glass 2 comprises interior glass plate 21, outer glass plate 22 and the middle diaphragm 23 be clipped between interior glass plate 21 and outer glass plate 22, interior glass plate 21 is towards automotive interior, outer glass plate 22 is towards automobile external, described middle diaphragm 23 is thermoplastic polymer film sheet, in order to reduce middle diaphragm 23 to the impact of first refractive light 12, the refractive index close of the refractive index of this middle diaphragm 23 and glass i.e. middle diaphragm 23 is selected to be not more than 0.1 with the refringence of described interior glass plate 21 and outer glass plate 22, more preferably, diaphragm 23 is not more than 0.05 with the refringence of described interior glass plate 21 and outer glass plate 22, the pvb film such as often used.Laminated glass 2 shown in Fig. 1 is convenient so be depicted as straight in order to map, but laminated glass 2 is bending in practical application, be understandable that, bending laminated glass 2 is the preferred scheme of the utility model institute, but be not limited thereto, other transparent component, such as monolithic or more sheet lamination, straight or bending (curvature is homogeneous or change), all alternative described laminated glass 2 of transparent component colourless or dyeing, that be made up of simple glass and/or plastics.
Wherein, P polarized light 11 described in the utility model is with 57 degree of (i.e. Brewster angle θ
b) from air, incide the surface 211 away from middle diaphragm 23 on interior glass plate 21, the reflection on first surface 211 can be eliminated, Brewster angle θ mentioned here
brelevant with the refractive index of concrete optical material, for the general material for shield glass in the utility model, described Brewster angle θ
bbe about 57 degree.More strictly speaking, described Brewster angle θ
balso relevant with the wavelength of P polarized light, but in the utility model, this impact is general very little, in the ordinary course of things, can by described Brewster angle θ in visible wavelength (380 ~ 780nm) scope
bbe considered as constant.As shown in Figure 8 A, the incident angle of P polarized light 11 is Brewster angle 57 degree, and in head-up-display system described in the utility model, HUD image (velocity information) is clear without ghost image.Meanwhile, in the projection imaging process of reality, due to the size relationship of light source and the projection virtual image, and the factor such as the mounting structure of windshield, light source position, the incident angle of P polarized light may with Brewster angle θ
bhave and depart from, but deviation angle can not be incident angle more than 15 degree is 42 ~ 72 degree, be preferably 55 ~ 70 degree, can be 55-64 degree further, be more preferably 56 ~ 59 degree, in this case, the reflected light come from first surface 211 and second surface 221 can not be eliminated completely, but still quite low with the reflected light phase specific strength of generation on transparent nano film 3; As shown in Figure 8 B, the incident angle of P polarized light is 66 degree for departing from Brewster angle 9 degree i.e. incident angle, now ghost image reflection image is enough low relative to principal reflection image brightness, ghost image reflection image is rendered as principal reflection and swoons as the comparatively low light level on side, in fact human eye is difficult to the existence feeling ghost image, therefore visual still without ghost image.Compare with Fig. 8 B with Fig. 8 A, Fig. 8 C is then new line display (HUD) image of common laminated glass, its ghost image reflectivity is about about 60% of principal reflection picture, can find out the existence of ghost image apparently, and practical effect is obviously not as Fig. 8 A in the utility model and Fig. 8 B.
Wherein, described transparent nano film 3 can the described P polarized light 11 of reflecting part incidence, the film material of the metal level in transparent nano film 3 can be selected can any material of reflected P polarized light 11, such as (but being not limited to) silver (Ag), gold (Au), copper (Cu), aluminium (Al) etc., in the utility model, be preferably the alloy of silver or argentiferous, wherein the alloy of argentiferous is preferably alloy that is silver-colored and at least one in gold, aluminium, copper in the utility model; In embodiment of the present utility model, all selected silver, in embodiment, the thickness of silver does not limit protection domain of the present utility model.
In order to ensure the environment for use of transparent nano film 3, protection transparent nano film 3 is from the destruction of the rugged surroundings such as the friction of acid rain, dust, wiper or alkaline cleaner, as shown in Figure 2 A, preferably described transparent nano film 3 is arranged on surface 212 i.e. the 3rd surface 212 that interior glass plate 21 contacts with middle diaphragm 23; Or as shown in Figure 2 B, preferably described transparent nano film 3 is arranged on surface 222 i.e. the 4th surface 222 that outer glass plate 22 contacts with middle diaphragm 23, it arranges technique can for magnetron sputtering technique known in the field, and the direct sputtering sedimentation of rete comprised by described transparent nano film 3 is on the 3rd surface 212 of interior glass plate 21 or the 4th surface 222 of outer glass plate 22.
Similarly; in order to ensure the environment for use of transparent nano film 3; protection transparent nano film 3 is from the destruction of the rugged surroundings such as the friction of acid rain, dust, wiper or alkaline cleaner; as shown in Fig. 3 A, 3B, 3C and 3D; can also be arranged on a slice polymer membrane 4 by transparent nano film 3, polymer membrane 4 is for supporting and protection transparent nano film 3.In order to reduce the impact of polymer membrane 4 on first refractive light 12, preferred described polymer membrane 4 is not more than 0.1 with the refringence of described interior glass plate 21 and outer glass plate 22, the PET film sheet such as often used; Wherein, as shown in Figure 3A, this polymer membrane 4 being provided with transparent nano film 3 is between interior glass plate 21 and middle diaphragm 23, and transparent nano film 3 is near middle diaphragm 23, and polymer membrane 4 is near interior glass plate 21; Or as shown in Figure 3 B, this polymer membrane 4 being provided with transparent nano film 3 is between outer glass plate 22 and middle diaphragm 23, and transparent nano film 3 is near middle diaphragm 23, and polymer membrane 4 is near outer glass plate 22; Or as shown in Figure 3 C, this polymer membrane 4 being provided with transparent nano film 3 is positioned on glass plate 21 away from the surface 211 of middle diaphragm 23 i.e. first surface 211, and between transparent nano film 3 with first surface 211, also have additional the identical polymer membrane of one deck 4, in order to improve the cohesive strength between transparent nano film 3 and first surface 211; Or as shown in Figure 3 D, this polymer membrane 4 being provided with transparent nano film 3 is between the middle diaphragm 23 of two panels.Be understandable that, in the embodiment shown in Fig. 3 A, 3B and 3D, also can at least set up the protective seam of layer of transparent polymer membrane as transparent nano film 3 between transparent nano film 3 and middle diaphragm 23; In the embodiment shown in Fig. 3 A, between polymer membrane 4 and interior glass plate 21, also can set up at least one deck transparent polymer adhesion layer; In the embodiment shown in Fig. 3 B, between polymer membrane 4 and outer glass plate 22, also can set up at least one deck transparent polymer adhesion layer.
The film of transparent nano described in the utility model 3 comprises at least two dielectric layers and at least one metal level; each metal level is between two dielectric layers; even barrier layer and/or protective seam etc. can also be comprised; the concrete structure of above-mentioned rete does not affect protection domain of the present utility model, therefore does not describe in detail at this.According to the needs of practical application, there is certain difference in the quantity of the metal level in described transparent nano film, when particularly very conventional silver layer or the alloy-layer of argentiferous are as metal level, common ground can comprise individual layer silver layer, double-deck silver layer or three layers of silver layer, even more multi-layered, described dielectric layer is selected from ZnSnMgOx, ZnSnOx, ZnO, SnO
2, TiO
2, Si
3n
4or AlN etc.Film material and the thickness of the transparent nano film in the utility model can through optimal design, can realize bearing subsequent high temperature thermal treatment or other production technologies, and the optical property of the head-up-display system obtained can meet the use standard of vehicle glass, overcome the shortcomings such as the permanance that simple thin metal layer exists is not good, optical appearance is poor completely.When head-up-display system described in the utility model comprises individual layer silver layer transparent nano film 3, its visible light transmissivity TL is not less than 70%, and the direct transmitance TE of sun power is not higher than 50%; When described head-up-display system comprises double-deck silver layer transparent nano film 3, its visible light transmissivity TL is not less than 75%, and the direct transmitance TE of sun power is not higher than 47%; When described head-up-display system comprises three layers of silver layer transparent nano film 3, its visible light transmissivity TL is not less than 70%, and the direct transmitance TE of sun power is not higher than 34%, and the total transmitance Tts of sun power is not higher than 40%.Further, as required its appearance color can also be adjusted to the muted color of pleasant, light blue, pale blue is green or lavender.
As shown in Figure 4, A0 is that P polarized light is with 57 degree of (Brewster angle θ
b) inciding reflectance spectrum figure on common laminated glass, A1 is that P polarized light is with 57 degree of (Brewster angle θ
b) inciding reflectance spectrum figure on the head-up-display system comprising individual layer silver layer transparent nano film, A2 is that P polarized light is with 57 degree of (Brewster angle θ
b) inciding reflectance spectrum figure on the head-up-display system comprising double-deck silver layer transparent nano film, A3 is that P polarized light is with 57 degree of (Brewster angle θ
b) incide reflectance spectrum figure on the head-up-display system comprising three layers of silver layer transparent nano film.
Wherein, A0 curve is in close proximity to 0, shows that the repeller of uncoated glass to the P polarized light of incidence is faint.It is more straight to the curve of spectrum of P polarization light reflectance in the appreciable visible wavelength of the eyes of common people (400 ~ 700nm) scope that A1 curve shows the head-up-display system comprising individual layer silver layer transparent nano film, and its reflectivity is higher than 10%.As can be seen here, in conjunction with the eyes of A1 curve and people to the perception susceptibility of P polarized light wavelength and comfortableness, when preferred described transparent nano film 3 comprises one metal level (such as silver layer), the color of the P polarized light 11 that described projection light source 1 produces is selected from least one in redness, green and blueness, such as full-color display.
Wherein, A2 curve shows the head-up-display system comprising double-deck silver layer transparent nano film and mainly concentrates on blueness (450 ~ 500nm) and green (500 ~ 550nm) region to P polarization light reflectance, thus selects the wavelength of suitable P polarized light can realize monochrome (blue or green) display or double-colored (blue and green) display; Meanwhile, relative to A1 curve, in A2 curve, P polarization light reflectance is relative with green area on the low side in blueness, for reach under sunshine on daytime also can clear view to showing image, can be made up by the luminosity of increase projection light source 1.As can be seen here, in conjunction with the eyes of A2 curve and people to the perception susceptibility of P polarized light wavelength and comfortableness, when preferred described transparent nano film 3 comprises two metal level (such as silver layer), the color of the P polarized light 11 that described projection light source 1 produces is selected from least one in green and blueness.Such as, when described projection light source 1 is broad spectrum light source (the TFT liquid crystal display as LED-backlit), blue and the double-colored display of green can be realized.
Wherein, it is not straight that A3 curve shows the reflectance spectrum curve of head-up-display system to P polarized light comprising three layers of silver layer transparent nano film, but in the appreciable visible wavelength of the eyes of common people (400 ~ 700nm) scope, select suitable wavelength coverage also can realize the display that comes back, such as blue wavelength 450 ~ 500nm, green wavelength 500 ~ 550nm and red wavelength 630 ~ 680nm; Similarly, relative to A1 curve, in A3 curve, P polarization light reflectance is also relatively on the low side, for reach under sunshine on daytime also can clear view to display image, can be made up by the luminosity increasing projection light source 1.As can be seen here, in conjunction with the eyes of A3 curve and people to the perception susceptibility of P polarized light wavelength and comfortableness, when preferred described transparent nano film 3 comprises three metal level (such as silver layer), the color of the P polarized light 11 that described projection light source 1 produces is selected from least one in redness, green and blueness, such as full-color display.
In rainy day or haze weather, in shield glass, outside surface easily adheres to one deck water layer, due to the refractive index of water and glass, there is some difference, P polarized light may reflect on the interface of water layer and glass contact, as shown in Figure 5, for the above-mentioned head-up-display system comprising individual layer silver layer transparent nano film, in figure, B1 curve is the reflectance spectrum curve comprising the head-up-display system of individual layer silver layer transparent nano film outer glass plate covering one deck water layer, from B1 curve and A1 curve comparison, P polarization light reflectance in B1 curve only slightly increases, show from water layer very low to the reflection strength of P polarized light, can not impact the intensity of metal layer reflection P polarized light, thus vision interference and ghost phenomena can not be produced.
The head-up-display system comprising the transparent nano film of two-layer silver layer or three layers of silver layer for Fig. 4 is on the low side and can not carry out the shortcoming of full-color display to P polarization light reflectance, as shown in Figure 6, an auxiliary diaphragm 5 is also set up when the transparent nano film 3 of the utility model preferably in head-up-display system comprises two metal levels (such as double-deck silver layer transparent nano film) or three metal level (such as three layers of silver layer transparent nano film), described auxiliary diaphragm 5 comprises at least a slice auxiliary polyalcohol diaphragm 51 and the auxiliary transparent nano film 52 comprising a metal level be arranged on auxiliary polyalcohol diaphragm 51, preferably the refractive index of auxiliary polyalcohol diaphragm 51 and the refringence of described interior glass plate 21 and outer glass plate 22 are not more than 0.1, such as PET film sheet.In figure 6, described auxiliary diaphragm 5 comprises a slice auxiliary polyalcohol diaphragm 51, auxiliary polyalcohol diaphragm 51 is near transparent nano film 3, auxiliary transparent nano film 52 is near middle diaphragm 23, be understandable that, transparent polymer protective seam can also be set up between auxiliary transparent nano film 52 and middle diaphragm 23, or auxiliary polyalcohol diaphragm 51 is set near middle diaphragm 23, the polymeric layer with adhesion property is set between auxiliary transparent nano film 52 and transparent nano film 3 simultaneously, the refringence of described protective seam and adhesive polymer nitride layer refractive index and described interior glass plate 21 and outer glass plate 22 is not more than 0.1.Described auxiliary diaphragm 5 is positioned at the described incident area of P polarized light 11 and the projected display region of head-up-display system, auxiliary transparent nano film 52 in described auxiliary diaphragm 5 and the distance between the described transparent nano film 3 comprising two metal levels or comprise three metal levels are not more than 350 μm, wherein said auxiliary transparent nano film 52 can be identical with the described film layer structure comprising the transparent nano film 3 (such as individual layer silver layer transparent nano film) of a metal level, and being understandable that also can be different.Although the described auxiliary diaphragm 5 set up also can produce reflection to P polarized light, but obvious ghost phenomena can not be produced, this is because the distance between described auxiliary transparent nano film 52 and the described transparent nano film 3 comprising two metal levels or comprise three metal levels is very little, therefore the reflected image that these two films produce can highly overlap.In order to reach better display effect, auxiliary transparent nano film 52 in preferred described auxiliary diaphragm 5 and the distance between the described transparent nano film 3 comprising two metal levels or comprise three metal levels are not more than 100 μm, are more preferably that this distance is not more than 50 μm.Simultaneously, as shown in Figure 7, B3 curve shows the reflectance spectrum curve of head-up-display system to P polarized light comprising the transparent nano film of two silver layers setting up auxiliary diaphragm 5, B4 curve shows the reflectance spectrum curve of head-up-display system to P polarized light comprising the transparent nano film of three silver layers setting up auxiliary diaphragm 5, known by contrasting: relative to A3 or the A4 curve not setting up auxiliary diaphragm 5, B3 curve or the reflectivity shown in B4 curve are obviously higher, illustrate that the head-up-display system having additional auxiliary diaphragm 5 is higher to P polarization light reflectance, and full-color high definition Projection Display can be realized.
In order to illustrate in greater detail and support utility model of the present utility model point with have more cogency, now enumerate some embodiments and be described in detail.
Embodiment 1 ~ 3 and comparative example 1
With Fu Yao group produce thickness be that the sodium-calcium-silicate float glass of 2.1 millimeters is for substrate, after the operations such as cutting, edging, washing and oven dry, enter magnetron sputtering plating line and carry out coated film deposition, be arranged on deposition on substrate dielectric layer and silver layer according to following rete:
Embodiment 1: glass substrate/Si
3n
430nm/TiO
25nm/ZnO 8nm/Ag 11.9nm/NiCrOx 3nm/ZnSnMgOx38nm/Si
3n
45nm;
Embodiment 2: glass substrate/Si
3n
423nm/ZnO 7nm/Ag 10nm/NiCrOx 2nm/ZnO 7nm/Si
3n
463nm/ZnO7nm/Ag 10nm/NiCrOx 2nm/ZnO 8nm/ZnSnMgOx 31nm/Si
3n
44nm;
Embodiment 3: glass substrate/Si
3n
422nm/ZnO 7nm/Ag 10nm/Zr 1nm/ZnO 7nm/Si
3n
458nm/ZnO7nm/Ag 10nm/Zr 1nm/ZnO 7nm/Si
3n
462nm/ZnO 7nm/Ag 10nm/Zr 1nm/ZnO 9nm/ZnSnMgOx30nm/Si
3n
44nm;
After rete deposition terminates, with Fu Yao group produce thickness be that the sodium-calcium-silicate float glass of 2.1 millimeters is for joining sheet, shaping according to vehicle glass high temperature molding processes, the colourless PVB film of a slice 0.76 mm of thickness in therebetween again, close sheet at autoclave mesohigh again, also after other processing examples are as annex installation, make the laminated glass comprising transparent nano film.
Comparative example 1 is the ordinary flat laminated glass without plated film, and its structure is press from both sides the colourless PVB film of last layer 0.76 millimeter between two panels 2.1 millimeters of float glasses; Except coated film deposition, all the other technological processs are the same.
Projection light source in the head-up-display system of embodiment 1 ~ 3 and comparative example 1 is the TFT-LCD projector of LED-backlit, P polarized light can be produced, wherein also comprise multiple catoptron, the display image regulating the angle incident direction of projector position and emergent light that observer is observed reaches the most clear.When carrying out imaging with comparative example glass, between projector and glass, additional a slice resin half-wave plate makes polarization direction become S polarization for improving brightness of image, keeps P polarized light incident in embodiment 1 ~ 3.Polarized light projection light source produced in the head-up-display system that embodiment 1 ~ 3 and comparative example 1 are formed is with the Brewster angle θ of 57 degree
bfor incidence, other parameters and image quality illustrate all in Table 1.
Table 1: the head-up-display system that embodiment 1 ~ 3 is formed and image quality thereof
By known in table 1: the head-up-display system that embodiment 1 ~ 3 is formed can eliminate ghost phenomena, and can clear display image.Further, the incident angle of P polarized light can depart from 57 degree of (Brewster angle θ
b), such as, in embodiment 1, P polarized light incident angle can be increased to about 68 degree, and its imaging is still clear, visual without ghost image; The P polarized light incident angle of embodiment 2 and embodiment 3 can be set to 62 degree, and its imaging is still clear, visual without ghost image.
Embodiment 4 ~ 6
With Fu Yao group produce thickness be that the sodium-calcium-silicate float glass of 2.1 millimeters is for substrate, after the operations such as cutting, edging, washing and oven dry, the thickness produced with another Pian Fuyao group be the sodium-calcium-silicate float glass of 2.1 millimeters as joining sheet, shaping according to vehicle glass high temperature molding processes.Before conjunction sheet, high-transparency automotive polyester (PET) pad pasting comprising individual layer silver layer transparent nano film is laid at least part of surface of in type automotive front baffle; Wherein, high-transparency automotive polyester (PET) pad pasting comprising individual layer silver layer transparent nano film, as shown in Fig. 3 A or Fig. 3 B, is arranged between interior glass plate 21 and middle diaphragm 23 or between outer glass plate 22 and middle diaphragm 23 by embodiment 4; High-transparency automotive polyester (PET) pad pasting comprising individual layer silver layer transparent nano film as shown in Figure 3 C, is arranged on interior glass plate 21 away from the surface 211 of middle diaphragm 23 i.e. first surface 211 by embodiment 5; Embodiment 6 as shown in Figure 3 D, will comprise high-transparency automotive polyester (PET) diaphragm arrangement of individual layer silver layer transparent nano film between two panels pvb film 23; Then, respectively the above-mentioned glass being provided with high-transparency automotive polyester (PET) pad pasting is such as closed sheet, annex installation etc. through subsequent technique and make laminated glass product.
The P polarized light source of embodiment 4 ~ 6 is the TFT-LCD projection light source of LED-backlit, and TFT-LCD projection light source can produce P polarized light.P polarized light projection light source produced in the head-up-display system that embodiment 4 ~ 6 is formed is with the Brewster angle θ of 57 °
bincidence, color and the final image quality of the kind of transparent nano film wherein, position and P polarized light illustrate all in table 2.
Table 2: the head-up-display system that embodiment 4 ~ 6 is formed and image quality thereof
By known in table 2: the head-up-display system that embodiment 4 ~ 6 is formed can eliminate ghost phenomena, and can clear display image.
Embodiment 7 ~ 8
Embodiment 7 and 8 is similar with embodiment 2 and 3 respectively, difference be as shown in Figure 6 respectively described in it incident area of P polarized light and the projected display region of head-up-display system set up auxiliary diaphragm 5, described auxiliary diaphragm 5 comprises a slice thickness to be the PET film sheet of 50 μm and to be deposited on auxiliary transparent nano film 52 on this PET film sheet.
The film layer structure of auxiliary transparent nano film 52 in embodiment 7 auxiliary diaphragm 5: PET film sheet/ZnSnOx 27nm/ZnO7nm/Ag 10nm/Ti 1nm/ZnO 8nm/ZnSnOx 21nm;
The film layer structure of auxiliary transparent nano film 52 in embodiment 8 auxiliary diaphragm 5: PET film sheet/ZnSnOx 26nm/ZnO10nm/Ag 10nm/Ti 1nm/ZnO 9nm/ZnSnOx 39nm;
P polarized light projection light source produced in the head-up-display system formed is incident with the Brewster angle θ B of 57 °, and P polarized light is full-color display, lists file names with natural light respectively with normal incidence with the associated technical parameters of 60 ° of angle incidences, as shown in table 3.Meanwhile, figure 7 illustrates the head-up-display system of embodiment 7 ~ 8 formation to the reflectance spectrum figure of P polarized light.
Table 3: the head-up-display system that embodiment 7 ~ 8 is formed and technical parameter thereof
By table 3 and Fig. 7 known: the head-up-display system that embodiment 7 ~ 8 is formed can eliminate ghost phenomena, can clear full-color display image; Further, can be combined and thickness by the rete optimizing individual layer silver layer transparent nano film in auxiliary diaphragm, thus the region realizing setting up auxiliary diaphragm is basically identical with the color in the region not setting up auxiliary diaphragm; Meanwhile, relative to the region not setting up auxiliary diaphragm, although the region visible light transmissivity (TL%) setting up auxiliary diaphragm slightly declines, it promotes 1 times to P polarization light reflectance (RL%), makes projected image more clear.
More than the utility model cited embodiment is all describing the structure composition of head-up-display system; and all do not describe as the concrete manufacture craft of concrete rete depositing operation, parameter and laminated glass articles and parameter; be understandable that the part that these do not describe is all well known to those of ordinary skill in the art, therefore the part do not described does not affect the claimed scope of the utility model.
Above content specifically describes head-up-display system described in the utility model; and list multiple embodiment to be described; but the utility model is not subject to the limitation of embodiment content described above and corresponding embodiment; the any improvement carried out according to technical essential of the present utility model so all, equivalent modifications and replacement etc., all belong to the scope of the utility model protection.
Claims (10)
1. a head-up-display system, comprise projection light source and laminated glass, the middle diaphragm that described laminated glass comprises interior glass plate, outer glass plate and is clipped between interior glass plate and outer glass plate, it is characterized in that: also comprise transparent nano film, described transparent nano film comprises at least two dielectric layers and at least one metal level, each metal level is between two dielectric layers, and the refringence of described interior glass plate and outer glass plate and described middle diaphragm is not more than 0.1; Described projection light source is for generation of P polarized light, and described P polarized light incides the surface away from middle diaphragm on interior glass plate, and its incident angle is 42 ~ 72 degree, and described transparent nano film can the described P polarized light of reflecting part incidence.
2. head-up-display system according to claim 1, is characterized in that: described metal level is the alloy-layer of silver layer or argentiferous.
3. head-up-display system according to claim 1, is characterized in that: the incident angle of described P polarized light is 55 ~ 70 degree.
4. head-up-display system according to claim 1, is characterized in that: the refringence of described interior glass plate and outer glass plate and described middle diaphragm is not more than 0.05.
5. head-up-display system according to claim 1, is characterized in that: on the surface that described transparent nano film is arranged on interior glass plate and middle film contact or be arranged on the surface of outer glass plate and middle film contact.
6. head-up-display system according to claim 1, it is characterized in that: described transparent nano film is arranged on a slice polymer membrane, the refringence of described polymer membrane and described interior glass plate and outer glass plate is not more than 0.1, and the polymer membrane being provided with transparent nano film is between interior glass plate and outer glass plate or the surface be arranged on away from middle diaphragm on interior glass plate.
7. head-up-display system according to claim 1, is characterized in that: the color of the P polarized light that described projection light source produces is selected from least one in redness, green and blueness.
8. head-up-display system according to claim 7, is characterized in that: when described transparent nano film comprises two metal levels, and the color of the P polarized light that described projection light source produces is selected from least one in green and blueness.
9. head-up-display system according to claim 1, it is characterized in that: when the transparent nano film in head-up-display system comprises two metal levels or three metal levels, also set up an auxiliary diaphragm, described auxiliary diaphragm comprises at least a slice auxiliary polyalcohol diaphragm and the auxiliary transparent nano film comprising a metal level be arranged on auxiliary polyalcohol diaphragm, described auxiliary diaphragm is positioned at the incident area of described P polarized light, auxiliary transparent nano film in described auxiliary diaphragm and the distance between the described transparent nano film comprising two metal levels or comprise three metal levels are not more than 350 μm.
10. head-up-display system according to claim 9, is characterized in that: the auxiliary transparent nano film in described auxiliary diaphragm and the distance between the described transparent nano film comprising two metal levels or comprise three metal levels are not more than 100 μm.
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|---|---|---|---|
| CN201420593200.8U CN204143067U (en) | 2014-10-14 | 2014-10-14 | A kind of head-up-display system |
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|---|---|---|---|
| CN201420593200.8U CN204143067U (en) | 2014-10-14 | 2014-10-14 | A kind of head-up-display system |
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| CN204143067U true CN204143067U (en) | 2015-02-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104267499A (en) * | 2014-10-14 | 2015-01-07 | 福耀玻璃工业集团股份有限公司 | Head up display system |
| CN105842850A (en) * | 2016-03-22 | 2016-08-10 | 福耀集团（上海）汽车玻璃有限公司 | HUD glass product with reflecting film layer |
| CN111433023A (en) * | 2018-11-09 | 2020-07-17 | 法国圣戈班玻璃厂 | Projection device for a head-up display (HUD) using p-polarized radiation |
| CN111433022A (en) * | 2018-11-09 | 2020-07-17 | 法国圣戈班玻璃厂 | Projection device for a head-up display (HUD) using p-polarized radiation |
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| WO2022058178A1 (en) | 2020-09-21 | 2022-03-24 | Saint-Gobain Glass France | Projection assembly for a head-up display (hud) with p-polarized radiation |
| WO2022073825A1 (en) | 2020-10-09 | 2022-04-14 | Saint-Gobain Glass France | Projection assembly for a head-up display |
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| US10437054B2 (en) | 2014-10-14 | 2019-10-08 | Fuyao Glass Industry Group Co., Ltd. | Head-up display system |
| WO2016058474A3 (en) * | 2014-10-14 | 2016-06-09 | 福耀玻璃工业集团股份有限公司 | Head-up display system |
| CN104267499A (en) * | 2014-10-14 | 2015-01-07 | 福耀玻璃工业集团股份有限公司 | Head up display system |
| CN104267499B (en) * | 2014-10-14 | 2016-08-17 | 福耀玻璃工业集团股份有限公司 | A kind of head-up-display system |
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