Eprojection display system and full-color projection optical engine
AssigneeHuawei Technologies Co., Ltd.
InventorsKun LUO, Pengfei ZHAO, Congbiao JIANG
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Abstract
A projection display system and a full-color projection optical engine are disclosed. Pixel dimensions of the blue light-emitting pixel array and pixel dimensions of the green light-emitting pixel array are both smaller than pixel dimensions of the red light-emitting pixel array. At least one group of pixel expansion apparatuses is disposed between the red light-emitting pixel array and the light-combining prism. The at least one group of pixel expansion apparatuses is configured to obtain expanded red light based on the red light, where resolution of an image obtained based on the expanded red light is n times resolution of an image obtained based on the red light, and n>1.
Claims19
A projection display system comprising:
- a red light-emitting pixel array, a blue light-emitting pixel array, a green light-emitting pixel array, and a light-combining prism, wherein the light-combining prism is disposed in optical paths of red light emitted by the red light-emitting pixel array, blue light emitted by the blue light-emitting pixel array, and green light emitted by the green light-emitting pixel array, and pixel dimensions of the blue light-emitting pixel array and pixel dimensions of the green light-emitting pixel array are both smaller than pixel dimensions of the red light-emitting pixel array;
- at least one group of pixel expansion apparatuses is disposed between the red light-emitting pixel array and the light-combining prism;
- the at least one group of pixel expansion apparatuses is configured to obtain expanded red light based on the red light, wherein resolution of an image obtained based on the expanded red light is n times resolution of an image obtained based on the red light, and n>1;
- and
- the light-combining prism is configured to:
- combine the expanded red light, the blue light, and the green light, and emit combined light along a same direction.
A projection display system:-comprising, a red light-emitting pixel array, a blue light-emitting pixel array, a green light-emitting pixel array, and a light-combining prism, wherein the light-combining prism is disposed in optical paths of red light emitted by the red light-emitting pixel array, blue light emitted by the blue light-emitting pixel array, and green light emitted by the green light-emitting pixel array;
- the light-combining prism is configured to:
- combine the red light, the blue light, and the green light, and emit combined light along a same direction;
- at least one group of pixel expansion apparatuses is disposed in an optical path of the combined light emitted by the light-combining prism;
- and
- the at least one group of pixel expansion apparatuses is configured to obtain expanded combined light based on the combined light, wherein resolution of an image obtained based on the expanded combined light is n times resolution of an image obtained based on the combined light, and n>1.
Dependencies are inferred from the claim text.