Image sensor for a camera device
AssigneeSamsung Electronics Co., Ltd.
InventorsHyeyeon Park, Yunki Lee, Jinwoong Namgoong, Hyunseok Song, Hyungkeun Gweon, Bumsuk Kim
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Abstract
Provided is an image sensor including a light sensing element, a planarization layer disposed on the light sensing element, a color filter array layer disposed on the planarization layer, the color filter array layer including color filters, and a microlens disposed on the color filter array layer, wherein the color filters include a green filter, a blue filter and a red filter, and wherein a refractive index of the green filter is greater than 1.7 for a green light wavelength range of 500 nm to 570 nm.
Claims17
An image sensor comprising:
- a light sensing element disposed in a substrate;
- a planarization layer disposed on the light sensing element;
- a color filter array layer disposed on the planarization layer, the color filter array layer comprising color filters;
- an interference blocking structure disposed between adjacent the color filters, the interference blocking structure at least partially overlapping the color filter array layer in a horizontal direction parallel to an upper surface of the substrate;
- and
- a microlens disposed on the color filter array layer,
- wherein the color filters comprise a green filter, a blue filter and a red filter,
- wherein a refractive index of the green filter is greater than 1.7 for a green light wavelength range of 500 nm to 570 nm,
- wherein the refractive index of the green filter corresponding to the green light wavelength range is greater than a refractive index of the microlens, and
- wherein the interference blocking structure includes a transparent material having a refractive index less than refractive indices of the color filters.
An image sensor comprising:
- a light sensing element disposed in a substrate;
- a planarization layer disposed on the light sensing element;
- a color filter array layer disposed on the planarization layer, the color filter array layer comprising color filters;
- and
- a microlens on the color filter array layer,
- wherein the color filters comprise a green filter, a blue filter and a red filter, and
- wherein the green filter comprises a green pigment having a weight ratio of 35 wt % to 50 wt %.
An image sensor comprising:
- a light sensing element;
- a planarization layer disposed on the light sensing element;
- a color filter array layer disposed on the planarization layer, the color filter array layer comprising color filters;
- an interference blocking structure disposed between adjacent the color filters, the interference blocking structure at least partially overlapping the color filter array layer in a horizontal direction parallel to an upper surface of the planarization layer;
- and
- a microlens on the color filter array layer,
- wherein the color filters comprise a green filter, a blue filter and a red filter,
- wherein a refractive index of the green filter for a green light wavelength range is greater than a refractive index of the microlens, a refractive index of the blue filter for a blue light wavelength range is greater than the refractive index of the microlens, and a refractive index of the red filter for a red light wavelength range is greater than the refractive index of the microlens, and
- wherein the interference blocking structure includes a transparent material having a refractive index less than refractive indices of the color filters.
Dependencies are inferred from the claim text.