Abstract:
A real-time optical projective displaying system for vehicles (ex: car) is disclosed. The system comprises: a trans-flective film adhered on a windshield of the vehicle, and an electronic mobile device with function of displaying electronic image such as navigation information. The electronic mobile device is placed beneath the trans-flective film and the screen of the electronic mobile device is aligned with the trans-flective film such that the electronic image can be projected in real time to the trans-flective film and then reflected into human eye with the electronic image is orientated in the direction same as the driving direction. Therefore, a driver can read the electronic image without heading down and looking at the electronic mobile device.

Description:
FIELD OF THE INVENTION 
       [0001]    The present invention relates to a real-time optical projective displaying system, particularly relates to a real-time optical projective displaying system in vehicle. 
       BACKGROUND OF THE INVENTION 
       [0002]    Since real-time navigation devices are exploited, more and more vehicles are equipped with them for navigation during driving. At beginning stages of developing relative devices, most of people directly use devices that are special designed for navigation purpose. But with the development of navigation application program on general mobile devices, more and more people use the navigation application programs installed in general mobile devices instead of the special navigation devices, especially for those who don&#39;t drive very often or go to unfamiliar places very often. 
         [0003]    However, most drivers can be distracted by looking at the screens of their mobile phones during driving, and further possibly make more traffic accidents. In fact, many countries in the world prohibit driver from operating his/her mobile phone during driving, so that using mobile phone as a navigation tool is not convenient for the driver without any rider together. In this regard, a simple navigation system for resolving aforementioned problems is an issue on simple navigation for vehicles. 
       SUMMARY OF THE INVENTION 
       [0004]    A real-time optical projective displaying system in a vehicle is provided herein, which enables a driver directly read navigation information shown on his/her mobile phone by right viewing a windshield of the vehicle, instead of looking at a screen of the mobile phone. With the operation of application program in a mobile device or the allocation of a twice reflection unit, the image that is projected onto the windshield of the vehicle may perform a somatosensory direction consistent with the ones of the vehicle in moving. 
         [0005]    A real-time optical projective displaying system in a vehicle is provided herein, which includes: a see-through plate saw through by a human eye; an optical processing film adhered on the see-through plate; and an optical display deposited beneath the see-through plate, position of the optical display being corresponding to position of the optical processing film adhered on the see-through plate and allowing the optical processing film to receive an electrical image shown on the optical display, wherein the electrical image is real-time projected onto the optical processing film through the optical display and reflected by the optical processing film into the human eye. 
         [0006]    A real-time optical projective displaying system in a vehicle is provided herein, which includes: a see-through plate saw through by a human eye; a first optical processing film adhered on the see-through plate; a reflection plate saw through by the human eye and faced to the see-through plate; a second optical processing film adhered on the reflection plate and faced to the first optical processing film; and an optical display deposited beneath the see-through plate and between the see-through plate and the reflection plate, a screen of the optical display being aligned with both position of the first processing film adhered on the see-through plate and position of the second optical processing film adhered on the reflection plate, and allowing the second optical processing film to receive an electrical image shown on the optical display, wherein the reflection plate is near the optical display and has an angle between the screen of the optical display and the reflection plate, and wherein electrical image is real-time projected onto the second optical processing film through the optical display, reflected by the second optical processing film onto the first optical processing film, and reflected by the first optical processing film into the human eye. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0007]    The above objects and advantages of the present invention will become more readily apparent to those ordinarily skilled in the art after reviewing the following detailed description and accompanying drawings, in which: 
           [0008]      FIG. 1  is a schematic diagram illustrating a first exemplary real-time optical projective displaying system in a vehicle according to the present invention. 
           [0009]      FIG. 2  is a schematic diagram illustrating a second exemplary real-time optical projective displaying system in a vehicle according to the present invention. 
           [0010]      FIG. 3  is a schematic diagram illustrating a third exemplary real-time optical projective displaying system in a vehicle according to the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0011]    A real-time optical projective displaying system in a vehicle will be illustrated herein. Other advantages and features of the invention will become more apparent with reference to the following detailed description of presently preferred embodiments thereof in connection with the accompany drawings, and the drawings are not necessarily to scale, and the size and relative sizes of some regions may have been exaggerated for clarity. 
         [0012]      FIG. 1  is a schematic diagram illustrating a first exemplary real-time optical projective displaying system in a vehicle according to the present invention. Shown in  FIG. 1 , the first exemplary real-time optical projective displaying system  1  in the vehicle includes an optical display  12  and a see-through plate  14 . The optical display  12  may be a display of electronic mobile device that can both store and display an electrical picture or an electrical image  120 . The see-through plate  14  is a member that people may see through and a trans-flective film  142  is attached to. The optical display  12  may be flat deposited beneath the see-through plate  14  and the screen of the optical display  12  is aligned with the trans-flective film  142 . The top of the electrical image  120  is directed to the see-through plate  14 . As a result, the position that the trans-flective film  142  is adhered on the see-through plate  14  can be corresponding to the position of the optical display  12 . Though an angle between the trans-flective film  142  and the optical display  12  is about 0˜180 degrees, or more then 0 degree and less than 180 degrees, the trans-flective film  142  can real-time receive the electrical image  120  shown on the optical display  12  so that the electrical image  120  can be projected onto the trans-flective film  142  to form a projection image  140 . In this embodiment, the real-time optical projective displaying system  1  assists any electronic mobile device with the electrical image, such as navigation information, in projecting the electrical images onto the windshield of the vehicle, so as to a driver may directly read the electrical image of the electronic mobile device without bowing his/her head to look at the electronic mobile device. That is, the optical display  12  is the display of the electronic mobile device, the see-through plate  14  is the windshield of the vehicle, an observer  18  is the driver, and the vehicle goes forwards direction  15 . 
         [0013]    In this embodiment, the electrical image  120  is projected onto the trans-flective film  142  and reflected into the eyes of the observer  18 . The image distinctness of the electrical image  120  is related to the polarity of the optical display  12  and the optical phase matching of the trans-flective film  142 . Provided that the optical display  12  is equipped with a polarizer, the image distinctness may be managed by adjusting an alignment angle of the optical display  12  with respect to the trans-flective film  142 , such as putting the optical display  12  flat and turning it right or left to make the direction of the optical display  12  ( FIG. 1  for example, the long side of the optical display  12 ) have an angle of 15 to 45 degrees with respect to the trans-flective film  142  rather than be aligned with the trans-flective film  142 . On condition that the optical display  12  is without the polarizer, the image distinctness may be managed by adding a polarizer or a phase difference plate onto the optical display  12  to optimize the polarity of the optical display  12  and the optical phase matching of the trans-flective film  142 . 
         [0014]    However, in the first example, if the electrical image  120  is an erect image in respect of the observer  18 , such as erect alphabets “Aa” in  FIG. 1 , when the electrical image  120  is projected onto the trans-flective film  142  to form a projection image  140 , it will be a reverse image of turning upside down shown in  FIG. 1  in respect of the observer  18  and make image identification difficult. To prevent such a situation,  FIG. 2  is a schematic diagram illustrating a second exemplary real-time optical projective displaying system in a vehicle according to the present invention. Shown in  FIG. 2 , compared to the real-time optical projective displaying system  1 , a real-time optical projective displaying system  1 ′ further includes the optical display  12  having a real-time image reversion unit  121 . With the real-time image reversion unit  121 , the electrical image  120  shown on the optical display  12  may be inverted upside down when it is projected, or backside forward with respect to the direction  15 , such as inverted alphabets “Aa” in  FIG. 2 , to form an inverted electrical image  120 ′. Next, the inverted electrical image  120 ′ is projected onto the trans-flective film  142  to form a projection image  140 ′, such as erect alphabets “Aa” in  FIG. 2 . The projection image  140 ′ is then reflected by the trans-flective film  142  and incident into the eyes of the observer  18 . As a result, for the observer  18 , the image direction of the projection image  140 ′ is same as the one shown on the optical display  12  in respect of a somatosensory direction. That is, for the observer  18 , the direction of the projection image  140 ′ in the somatosensory direction is identical to the direction of the electrical image  120  and consistent with the direction  15 . In the embodiment, a real-time image reversion unit  121  is an application software or program installed in an electronic mobile device such as a mobile phone. By the execution of the application program, the electrical image  120  shown on the optical display  12  may be real-time inverted and then projected onto the trans-flective film  142  for the real-time displaying erect images. 
         [0015]    Next,  FIG. 3  is a schematic diagram illustrating a third exemplary real-time optical projective displaying system in a vehicle according to the present invention. Shown in  FIG. 3 , compared to the real-time optical projective displaying system  1 , a real-time optical projective displaying system  1 ″ further includes a display housing device  160 . The display housing device  160  encloses hollow space  161  and includes a top lid  163  rotatable with respect to the hollow space  161 . A reflection plate  16  is on the top lid  163  and another optical processing film  164  is adhered onto the reflection plate  16 . The hollow space  161  of the display housing device  160  is configured to deposit or contain the optical display  12 . The optical display  12  is so deposited that an angle R is formed between the screen of the optical display  12  and the reflection plate  16  of the top lid  163  after the top lid  163  is rotated and fixed. The angle R is between 90 to 180 degrees, and the optical display  12  is deposited between the rotated and fixed reflection plate  16  and the see-through plate  14 . The reflection plate  16  is at one side of the optical display  12  and the optical processing film  164  is aligned with the screen of the optical display  12 . The trans-flective film  142  of the see-through plate  14  is aligned with the screen of the optical display  12 , too. The optical processing film  164  of the reflection plate  16  faces the trans-flective film  142  of the see-through plate  14 . As a result, the electrical image  120  shown on the optical display  12  is projected onto the optical processing film  164  of the reflection plate  16  first to form a single time projection image  162 , and then become a double-projection image  140 ″ on the trans-flective film  142 . For the observer  18 , the direction of the double-projection image  140 ″ is same as both the original electrical image  120  and the direction  15  in the somatosensory direction. Besides, the reflection plate  16  is see-through so that it would not have influence on vision from one side of the see-through plate  14  to another side thereof for the observer  18 . In an example of this embodiment, the display housing device  160  may be a box for positioning or holding the optical display  12 , the reflection plate  16  may be a lid of the box and be open and close rotatable to adjust the angle R between the reflection plate  16  and the optical display  12 . In another example of this embodiment, the display housing device  160  may be a jointing device rather than a box to connect the optical display  12  and the reflection plate  16 . 
         [0016]    Accordingly, for the real-time optical projective displaying system  1 , real-time optical projective displaying system  1 ′, and real-time optical projective displaying system  1 ″ in a vehicle, the optical display  12  may be the display of the electronic mobile device that both stores electrical pictures or electrical images and displays the electrical pictures or images, such as the display of a mobile phone with navigation function. The see-through plate  14  may be the windshield of the vehicle, the observer  18  is a driver, and the vehicle moves forwards the direction  15 . Moreover, for the real-time optical projective displaying system  1 , real-time optical projective displaying system  1 ′, and real-time optical projective displaying system  1 ″ in the vehicle, the electrical images of the electronic mobile device are projected onto the windshield, such as the projection image  140  or the projection image  140 ′ of the see-through plate  14 , or the double-projection image  140 ″, so as to the observer  18  may directly read the electrical images  120  of the optical display  12  without bowing his/her head to look at the electrical image  120  shown on the optical display  12  of the electronic mobile device. 
         [0017]    Besides, the trans-flective film  142  is see-through that people may see through, and the optical processing film  164  may be a trans-flective film. When they are applied to the real-time optical projective displaying system  1 , real-time optical projective displaying system  1 ′ or real-time optical projective displaying system  1 ″, the trans-flective film  142  and the optical processing film  164  will not have influence on vision from one side of the see-through plate  14  to another side thereof for the observer  18 . In the real-time optical projective displaying system  1 ″ of the third embodiment, the reflection plate  16  is also see-through, so that it will not prevent the observer  18  from seeing from one side of the see-through plate  14  to another side thereof. In another embodiment, the optical processing film  164  may be total reflection film. 
         [0018]    Besides, in another embodiment, for the real-time optical projective displaying system  1  in the vehicle shown in  FIG. 1 , an image amplifying film  17  may be further set on the optical display  12 , for example, a lens assembly consisted of diffraction optics. The image amplifying film  17  is deposited onto the optical display  12  and when the electrical image  120  of the optical display  12  passes through the image amplifying film  17 , the electrical image  120  may be magnified and the projection image  140  is further magnified, too. Similarly, the image amplifying film  17  may be also configured to magnify the projection image  140 ′ and the double-projection image  140 ″ in the real-time optical projective displaying system  1 , real-time optical projective displaying system  1 ′ and real-time optical projective displaying system  1 ″. It is understood that the image amplifying film  17  may be an element with the functions of polarity and image amplification. 
         [0019]    While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures.