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Image display system
| Details |
Inventors: Omori, Shigeru; Suzuki, Jun;
Assignee: Terumo Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Rao; Andy
Assistant Examiner: An; Shawn S.
Attorney, Agent or Firm: Burns, Doane, Swecker & Mathis, LLP
An image display system which provides first and second images such that the right eye and the left eye of an observer see the first and second images at different times, respectively. The image display system comprises a camera for taking a picture of the observer and then outputting an image of the observer; a liquid crystal display device transparent to light, for displaying the first and second images at the different times, respectively; a back-lighting device which displays back light images to illuminate the liquid crystal display device from a back side thereof, at the different times; and an optical element for giving directivity to back light emitted by the back-lighting device so that the back-lighting device provides back light illuminations of the LCD device for the right and left eyes at the different times. The apparatus detects centroids or contours of images of the observer taken by the camera, and generates the back-light images on the basis of the centroids or contours. The apparatus synchronizes the display of the back-light images with the display of the first and second images, respectively. |
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DETAILED DESCRIPTION It is an object of the present invention to solve the above-described problems.
It is another object of the present invention to provide an inexpensive and small-sized image display system which can provide different images to right and left eyes of an observer without using glasses for separating a right-eye image and left-eye image from each other.
To achieve the objects, the present invention provides an image display system for providing first and second images such that a right eye and a left eye of an observer see the first and second images at different times, respectively, the image display system comprising: picture-taking means for taking a picture of the observer and then outputting an image of the observer; a spatial modulation device transparent to light, for displaying the first and second images at the different times, respectively; generation means for generating a pair of back light images based on an image output signal from the picture-taking means at the different times, respectively; a back-lighting device which receives an output signal associated with the back light image generated by the back light image generation means and displays the back light images to illuminate the spatial modulation devices from a back side thereof, at the different times; synchronization means for synchronizing one of the first and second images present on the pair of spatial modulation devices with a generation of one of the pair of back light images by the generation means; and an optical element for giving directivity to back light emitted by the back-lighting device so that the back-lighting device provides back light illuminations of the spatial modulation device for the right and left eyes at the different times, wherein the generation means comprises: image processing means for processing an image of the observer taken by the picture taking means, detecting a contour and/or a centroid of the face area of the image of the observer, and then generating the pair of back light images on the basis of the detected contour and/or centroid
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TV Signal 
