| CPC G02B 27/0101 (2013.01) [G02B 27/0179 (2013.01); G02F 1/13306 (2013.01); G02F 1/133528 (2013.01); G02F 1/133621 (2013.01); G06F 3/013 (2013.01); G09G 3/3413 (2013.01); G09G 3/36 (2013.01); G02B 2027/014 (2013.01); G02B 2027/0187 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/0252 (2013.01); G09G 2320/043 (2013.01); G09G 2320/062 (2013.01); G09G 2320/066 (2013.01); G09G 2320/0686 (2013.01); G09G 2330/021 (2013.01); G09G 2354/00 (2013.01)] | 20 Claims |
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1. A system comprising:
a display device comprising:
a backlight unit comprising a plurality of light sources that are controllable, to switch between lights of different colours, wherein the plurality of light sources comprise:
at least one red light source employed to emit red light having at least one first wavelength corresponding to red colour;
at least one green light source employed to emit green light having at least one second wavelength corresponding to green colour; and
at least one blue light source employed to emit blue light having at least one third wavelength corresponding to blue colour; and
an active panel comprising:
a liquid crystal (LC) layer comprising a plurality of LC cells;
a linear polarizer arranged on an optical path of the LC layer; and
a drive circuit employed to individually control the plurality of LC cells of the LC layer;
an optical combiner arranged on an optical path of the display device and on an optical path of a real-world light field of a real-world environment, wherein a semi-reflective surface of the optical combiner has a multi-band reflective coating that is employed to selectively reflect the red light having the at least one first wavelength, the green light having the at least one second wavelength, and the blue light having the at least one third wavelength; and
at least one processor configured to:
obtain at least one predefined sequence in which sub-images of a given image are to be displayed via the display device, wherein each of the sub-images corresponds to a respective one of at least two different colours; and
display the sub-images of the given image, via the display device, by employing temporal multiplexing, wherein when displaying the sub-images of the given image, the at least one processor is configured to:
generate different sets of drive signals corresponding to respective ones of the sub-images of the given image, based on the at least one predefined sequence in which the sub-images are to be displayed, wherein for a given sub-image, a corresponding set of drive signals is generated to individually control the plurality of LC cells of the LC layer, based on intensity values of pixels in the given sub-image;
send the different sets of drive signals to the drive circuit according to the at least one predefined sequence in which the sub-images are to be displayed; and
control individually, via the drive circuit, the plurality of LC cells of the LC layer using the different sets of drive signals according to the at least one predefined sequence, whilst controlling the backlight unit to switch between lights of the at least two different colours according to the at least one predefined sequence in which the sub-images are to be displayed via the display device, thereby producing a synthetic light field corresponding to the given image,
further wherein the optical combiner is employed to selectively reflect the synthetic light field towards eyes of at least one user, whilst optically combining the real-world light field with the synthetic light field.
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