Image processing system capable of changing a polarization angle of a polarized image and related method
AssigneeWistron Corporation
InventorYao-Tsung Chang
Life of this patent
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Abstract
An image processing system includes a display device, a liquid crystal module, and a control device. The display device is used for outputting a first set of images and a second set of images. The first set of images and the second set of images have different visual angles. The liquid crystal module is disposed at a side of the display device. The control device is electrically coupled to the display device and the liquid crystal module. The control device includes a power source and a control unit. The control unit is electrically coupled to the power source for controlling whether the power source should input an electric field to a twisted nematic liquid layer of the liquid crystal module or not.
Claims22
An image processing system comprising:
- a display device for outputting a first set of images and a second set of images sequentially, the first set of images and the second set of images being of different visual angles but same polarization angles after being output by the display device;
- a liquid crystal module disposed on a side of the display device where the first set of images and the second set of images are outputted, the liquid crystal module comprising:
- a twisted nematic liquid crystal layer;
- a first transparent electrode structure disposed on a first side of the twisted nematic liquid crystal layer;
- and
- a second transparent electrode structure disposed on a second side of the twisted nematic liquid crystal layer;
- and
- a control device electrically coupled to the liquid crystal module and the display device, the control device comprising:
- a power source electrically coupled to the first transparent electrode structure and the second transparent electrode structure;
- and
- a control unit electrically coupled to the power source for controlling the power source to input an electric field to the two transparent electrode structures for passing the first set of images impartially through the twisted nematic liquid crystal layer, and stopping the power source from inputting an electric field to the two transparent electrode structures for offsetting the polarization angles of the second set of images by 90 degrees after passing through the twisted nematic liquid crystal layer.
A method of modifying polarization angle of a polarized image, the method comprising:
- outputting a first set of images and a second set of images of different visual angles to a liquid crystal module sequentially, the first set of images and the second set of images having same polarization angle after output;
- inputting an electric field to the liquid crystal module for passing the first set of images impartially through the liquid crystal module;
- and
- stopping inputting the electric field to the liquid crystal module for modifying the polarization angle of the second set of images by 90 degrees after passing through the liquid crystal module.
An image processing system comprising:
- a liquid crystal display device used for outputting a first set of images and a second set of images sequentially, the first set of images and the second set of images having different visual angles, respectively, but same polarization angles after being output by the liquid crystal display device;
- a liquid crystal module disposed on a side of the liquid crystal display device where the first set of images and the second set of images are outputted, the liquid crystal module comprising:
- a twisted nematic liquid crystal layer;
- a transparent electrode structure disposed on a first side of the twisted nematic liquid crystal layer;
- and
- a first transparent electrode layer connected to a second side of the twisted nematic liquid crystal layer;
- and
- a control device electrically coupled to the liquid crystal module and the liquid crystal display device, the control device comprising:
- a power source electrically coupled to the first transparent electrode layer and the transparent electrode structure;
- and
- a control unit electrically coupled to the power source for controlling the power source to input an electric field to the first transparent electrode layer and the transparent electrode structure for passing through the first set of images through the twisted nematic liquid crystal layer impartially, and for stopping input of the electric field from the power source to the first transparent electrode layer and the transparent electrode structures for offsetting the polarization angles of the second set of images by 90 degrees after passing through the twisted nematic liquid crystal layer.
Dependencies are inferred from the claim text.