Display system with spatial light modulator illumination for divided pupils

A display device comprising:

• a light source having a first spectral distribution;
• a waveguide disposed with respect to said light source to receive light from said light source, said waveguide including an outcoupling optical element comprising a liquid crystal and configured to eject light out of said waveguide;
• a spatial light modulator disposed with respect to said waveguide to receive said light ejected from said waveguide and modulate said light;
• a first optical retarder arranged between the liquid crystal and the spatial light modulator, wherein the first optical retarder is disposed on a first side of the waveguide between the waveguide and the spatial light modulator, and wherein the first optical retarder converts circularly polarized light diffracted from the liquid crystal into linear polarized light;
• and
• a second optical retarder, wherein the second optical retarder is disposed on a second side of the waveguide that is opposite to the first side of the waveguide, and wherein the second optical retarder converts circular polarized light into linear polarized light with a linear polarization different than that of the first optical retarder.

A display device for a head mounted display comprising:

• a waveguide based image source comprising:
• one or more light emitters configured to emit light;
• and
• one or more waveguides disposed with respect to said one or more light emitters to receive light from said one or more light emitters such that light is guided within said one or more waveguides via total internal reflection, said one or more waveguides configured to eject light out of said waveguides;
• a spatial light modulator disposed with respect to one or more waveguides to receive said light ejected from said one or more waveguides and modulate said light, wherein said one or more light emitters are configured to emit light having a spectral distribution that includes spectral components corresponding to first and second colors, and wherein said waveguide based image source is configured such that said light of said first and second colors after being modulated by said spatial light modulator is directed along said respective first and second paths and is incident on respective first and second spatial locations a distance from said one or more waveguides and said spatial light modulator;
• and
• an eyepiece element comprising a waveguide based light distribution system comprising:
• a first waveguide having associated therewith an in-coupling optical element disposed with respect to one or more first waveguides and said first path to receive light from said one or more waveguides after being modulated by said spatial light modulator;
• and
• a second waveguide having associated therewith an in-coupling optical element disposed with respect to said one or more waveguides and said second path to receive light from said one or more waveguides after being modulated by said spatial light modulator, wherein said in-coupling optical elements associated with said first and second waveguides, respectively, are located at said first and second spatial locations along said first and second paths respectively to receive said light of said first and second colors, respectively.