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US 12,574,481 B2Granted
Digital display system and method
AssigneeTexas Instruments Incorporated
InventorsKristofer Scott Oberascher, Gregory Scott Pettitt, Jeffrey Matthew Kempf, Michael Terry Davis, Xi Zhou
Life of this patent
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Abstract
A system includes a color filter including a first segment configured to transmit first light having a first color and to reflect second light having a second color and a second segment configured to transmit the second light having the second color and to reflect the first light having the first color. The system also includes an integrator rod optically coupled to the color filter, a reflective surface having an aperture on an end of the integrator rod.
Claims20
A system comprising:
- a color filter comprising:
- a first segment configured to transmit first light having a first color and to reflect second light having a second color;
- and
- a second segment configured to transmit the second light having the second color and to reflect the first light having the first color;
- and
- an integrator rod optically coupled to the color filter, the integrator rod including a first end and a second end that is closer to the color filter than the first end, the integrator rod including a reflective surface at the first end, the reflective surface having an aperture.
3 more elements
A system comprising:
- a light source configured to produce first light having a first color and second light having a second color;
- a color filter optically coupled to the light source, the color filter having:
- a first segment configured to transmit the first light having the first color and to reflect the second light having the second color to produce first reflected light;
- and
- a second segment configured to transmit the second light having the second color and to reflect the first light having the first color to produce second reflected light;
- and
- an integrator rod optically coupled between the light source and the color filter, the integrator rod configured to:
- transmit the first light towards the color filter;
- transmit the second light towards the color filter;
- reflect the first reflected light to direct the first reflected light towards the color filter;
- and
- reflect the second reflected light to direct the second reflected light towards the color filter;
- wherein the color filter is one of an involute color filter and an Archimedean color filter.
10 more elements
A system comprising:
- a color filter comprising:
- a first segment configured to transmit first light having a first color and to reflect second light having a second color;
- and
- a second segment configured to transmit the second light having the second color and to reflect the first light having the first color;
- an integrator rod optically coupled to the color filter, the integrator rod including a reflective surface on an end of the integrator rod, the reflective surface having an aperature;
- a spatial light modulator (SLM) optically coupled to the color filter;
- and
- a phosphor wheel optically coupled to the integrator rod.
5 more elements
Dependencies are inferred from the claim text.