Optoelectronic display system for transport vehicles

• US 8,305,295 B2
• Filed: 11/23/2009
• Issued: 11/06/2012
• Est. Priority Date: 11/23/2009
• Status: Expired due to Fees

• Current Assignee: Alexander Efros, Matvey Lvovskiy, Mikhail Lvovsky
• Original Assignee: Alexander Efros, Matvey Lvovskiy, Mikhail Lvovsky
• Inventors: Lvovskiy, Matvey, Efros, Alexander, Lvovsky, Mikhail
• Primary Examiner(s): Lefkowitz, Sumati
• Assistant Examiner(s): HORNER, JONATHAN R
• Application Number:
  US12/592,296
• Publication Number:
  US 20110122049A1
• Time in Patent Office: 1,079 Days
• Field of Search: 345 11- 13, 345 21- 23, 345/3.1, 345 7- 9, 359618-641
• US Class Current: 345/1.3
• CPC Class Codes: B60K 2360/334 Projection means
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/0165 associated with a head-down display
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G02B 5/02 Diffusing elements; Afocal elements
• CPC Class Codes: G02B 5/20 Filters polarising elements G02B5/30
• CPC Class Codes: G09G 2380/10 Automotive applications

Abstract

Optoelectronic Display System for Transport Vehicles is suggested providing simultaneous representation of visual information of different form and content relating to parameters of driving on windscreen and at dashboard plane. To form said visual information unified image creator based on two LCD matrixes is used and image intended for representation on windscreen in collimated form is created on their upper parts and on lower parts—for representation at dashboard plane. To improve operate reliability the system is provided with control device of image creator operation. In case one of LCDs is out-of-service the device is switching other (operable) LCD into mode of parameters ‘minimum number creation required for safe driving.

Claims

1. A display system comprising:

a computer connected with sensors in order to display signals,

a display unit installed in a panel equipped with upper and lower canals,

wherein a lower canal represents a first virtual image,

wherein an upper canal represents a second virtual image on the windscreen projected to optical infinity,

wherein the display unit is carried out with a unified optoelectronic image creator simultaneously generating different visual informative pictures and content display as the first virtual image and the second virtual image, respectively,

wherein the image creator is carried out with each of a first visualizer for the upper canal to display the first virtual image and second visualizer for the lower canal to display the second virtual image,

wherein the image creator is further carried out with a projective object, an illuminator which consists of a tricolor LED or three monochrome LEDs which are red, green, and blue, and an optical integrator,

wherein each of the first visualizer and second visualizer is based on LCD matrixes for the lower canal and upper canal;

wherein the first visualizer and the second visualizer have the same width, but the first visualizer has a smaller height than the second visualizer,

wherein the first visualizer and the second visualizer are side by side, wherein each image creator is carried out with a projective object,

wherein the optical integrator is formed of a thin laysan film fixed on a rigid frame, and comprises;

two photosensitive transducers located at the peripheral segments of the optical integrator, and each photosensitive transducer is equipped with a right-angle prism and a photodiode with a prism input side close to a plane of the optical integrator while a photodiode input area is close to the prism output side,

wherein the optical integrator forms an intermediate image from the first and second visualizer with minimum overlap, and in a standard mode the first visualizer and the second visualizer are continuously displaying a constant brightness mark which is registered by each of the photosensitive transducer photodiodes, and in the case that one of the first visualizer or the second visualizer is out-of-service and the corresponding luminous mark is no longer displayed on the intermediate image, the corresponding photosensitive transducer is activated and icons required for safe driving are displayed at the visualizer still displaying the constant brightness mark,

wherein each illuminator comprises;

a polarized a light divider, a polarizer, a condenser, a Frenel lens, and a light source,

whereas the polarizer and polarized light divider are oriented in such a way that only a first type of polarized light is transmitted by the polarizer and a second type of polarized light, different from the first type of polarized light, is reflected by the light divider such that only the first type of polarized light is transmitted to the upper canal to display the first virtual image from the first visualizer while the second type of polarized light is transmitted by the light divider to the lower canal to display the second virtual image from the second visualizer, and

wherein the device provides control of each of the first visualizer and second visualizer.

2. The display unit as in claim 1 wherein one of the first visualizer and the second visualizer represents first segments and the other of the first visualizer and the second visualizer represents second segments of images which are displayed at each of the upper canal and the lower canal and an optical superposition of magnified intermediate images with minimum overlap is carried out at the optical integrator of the intermediate images.

3. The display unit as in claim 2 wherein in order to represent the first virtual image at the upper canal the corresponding intermediate image which is displayed in a collimated form and superimposed on the focal plan of the upper canal.