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US 9,177,991 B2Granted
Pixel, method of manufacturing the same, and image processing devices including the same
AssigneeSamsung Electronics Co., Ltd.
InventorJung Chak Ahn
Life of this patent
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Abstract
A pixel of an image sensor includes a color filter configured to pass visible wavelengths, and an infrared cut-off filter disposed on the color filter configured to cut off infrared wavelengths.
Claims14
An image sensor, comprising:
- a planarization layer;
- a plurality of filters configured to pass corresponding wavelengths among visible wavelengths;
- an infrared cut-off filter disposed between the planarization layer and the plurality of filters, and configured to cut off infrared wavelengths;
- and
- a microlens disposed on the planarization layer,
- wherein at least two different type filters from among the plurality of filters are disposed in the same plane,
- wherein the plurality of filters includes a red filter, a blue filter, a green filter, and an infrared filter,
- wherein the infrared cut-off filter is not disposed on the infrared filter.
5 more elements
An image sensor, comprising:
- a planarization layer;
- a plurality of filters configured to pass corresponding wavelengths among visible wavelengths;
- an infrared cut-off filter disposed between the planarization layer and the plurality of filters, and configured to cut off infrared wavelengths;
- and
- a microlens disposed on the planarization layer,
- wherein at least two different type filters from among the plurality of filters are disposed in the same plane,
- wherein the plurality of filters includes a cyan filter, a yellow filter, a magenta filter, and an infrared filter,
- wherein the infrared cut-off filter is not disposed on the infrared filter.
5 more elements
An image sensor, comprising:
- a planarization layer;
- a plurality of filters configured to pass corresponding wavelengths among visible wavelengths;
- a plurality of infrared cut-off filters disposed between the planarization layer and the plurality of filters, and configured to cut off infrared wavelengths, respectively;
- a plurality of pixels, wherein each of the plurality of pixels includes a corresponding filter of the plurality of filters and a corresponding infrared cut-off filter of the plurality of infrared cut-off filters;
- a correlated double sampling (CDS) block configured to perform a CDS on pixel signals output from the plurality of pixels;
- an analog-to-digital converter (ADC) block configured to compare a ramp signal received from a ramp signal generator with each of output signals output from the CDS block and output digital signals corresponding to results of the comparison;
- and
- a microlens disposed on the planarization layer,
- wherein the plurality of filters is disposed in the same plane,
- wherein the plurality of filters includes a red filter, a blue filter, a green filter, and an infrared filter,
- wherein the infrared cut-off filter is not disposed on the infrared filter.
8 more elements
An image processing device, comprising:
- an image sensor;
- and
- a processor controlling an operation of the image sensor,
- wherein the image sensor comprises:
- a planarization layer;
- a plurality of filters configured to pass corresponding wavelengths among visible wavelengths;
- a plurality of infrared cut-off filters disposed between the planarization layer and the plurality of filters, and configured to cut off infrared wavelengths, respectively;
- a microlens disposed on the planarization layer;
- a plurality of pixels, wherein each of the plurality of pixels includes a corresponding filter of the plurality of filters and a corresponding infrared cut-off filter of the plurality of infrared cut-off filters;
- a correlated double sampling (CDS) block configured to perform a CDS on pixel signals output from the plurality of pixels;
- and
- an analog-to-digital converter (ADC) block configured to compare a ramp signal received from a ramp signal generator with each of output signals output from the CDS block and output digital signals corresponding to results of the comparison,
- wherein the plurality of filters is disposed in the same plane,
- wherein the plurality of filters includes a red filter, a blue filter, a green filter, and an infrared filter,
- wherein the infrared cut-off filter is not disposed on the infrared filter.
12 more elements
An image processing device, comprising:
- an image sensor;
- and
- a processor controlling an operation of the image sensor,
- wherein the image sensor comprises:
- a planarization layer;
- a plurality of filters configured to pass corresponding wavelengths among visible wavelengths;
- a plurality of infrared cut-off filters disposed between the planarization layer and the plurality of filters, and configured to cut off infrared wavelengths, respectively;
- a microlens disposed on the planarization layer;
- a plurality of pixels, wherein each of the plurality of pixels includes a corresponding filter of the plurality of filters and a corresponding infrared cut-off filter of the plurality of infrared cut-off filters;
- a correlated double sampling (CDS) block configured to perform a CDS on pixel signals output from the plurality of pixels;
- and
- an analog-to-digital converter (ADC) block configured to compare a ramp signal received from a ramp signal generator with each of output signals output from the CDS block and output digital signals corresponding to results of the comparison,
- wherein the plurality of filters is disposed in the same plane,
- wherein the plurality of filters includes a cyan filter, a yellow filter, a magenta filter, and an infrared filter,
- wherein the infrared cut-off filter is not disposed on the infrared filter.
12 more elements
Dependencies are inferred from the claim text.