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US 12,364,045 B2Granted
Image sensing device
AssigneeSK hynix Inc.
InventorsKyoung In Lee, Yu Jin Park
Life of this patent
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Abstract
An image sensing device includes a plurality of pixel groups, each pixel group including first to fourth unit pixels that are configured to respond to incident light and generate electrical signals, and wherein each of the first to fourth unit pixels of a pixel group includes optical filters operable to transmit incident light corresponding to a same color, wherein the first unit pixel and the second unit pixel that are included in the pixel group are located adjacent to each other and include portions of a first microlens, and wherein a light reception area of the third unit pixel of the pixel group has a size smaller than a size of a light reception area of the fourth unit pixel of the pixel group.
Claims14
An image sensing device, comprising:
- a plurality of pixel groups, each pixel group including first to fourth unit pixels that are configured to respond to incident light and generate electrical signals, and
- wherein each of the first to fourth unit pixels of one of the plurality of pixel groups includes optical filters operable to transmit incident light corresponding to a same color,
- wherein the first unit pixel and the second unit pixel that are included in each of the plurality of pixel groups are located adjacent to each other in a row direction of each of the plurality of pixel groups and include portions of a first microlens, and
- wherein a light reception area of the third unit pixel of the one of the plurality of pixel groups has a size smaller than a size of a light reception area of the fourth unit pixel of the one of the plurality of pixel groups,
- wherein the plurality of pixel groups further includes a first pixel group and a second pixel group that are located adjacent to each other in the row direction,
- wherein a first microlens contained in the first pixel group is disposed in a first row of the first pixel group and a first microlens contained in the second pixel group is disposed in a second row of the second pixel group,
- wherein each of the plurality of pixel groups further includes:
- a first light shielding structure disposed along an outer edge of the third unit pixel;
- a second light shielding structure disposed along an outer edge of the fourth unit pixel;
- a third light shielding structure disposed along outer edges of the first unit pixel and the second unit pixel, and
- wherein the first light shielding structure has a larger width than the second light shielding structure,
- wherein the third light shielding structure has a smaller width than the second light shielding structure, and
- wherein the first light shielding structure, the second light shielding structure and the third light shielding structure have openings having a square shape.
10 more elements
An image sensing device comprising:
- a plurality of pixel groups, each pixel group including first to fourth unit pixels that are configured to respond to incident light and generate signals, and
- wherein each of the first to fourth unit pixels of one of the plurality of pixel groups includes optical filters operable to transmit incident light corresponding to a same color,
- wherein the first unit pixel and the second unit pixel that are included in each of the plurality of pixel groups are located adjacent to each other and include portions of a first microlens,
- wherein a light reception area of the third unit pixel of the one of the plurality of pixel group has a size smaller than a size of a light reception area of the fourth unit pixel of the one of the plurality of pixel groups, and wherein:
- the first unit pixel and the second unit pixel that are included in the one of the plurality of pixel groups are located adjacent to each other in a column direction of each of the pixel groups,
- wherein the plurality of pixel groups further includes a first pixel group and a second pixel group that are located adjacent to each other in the column direction,
- wherein a first microlens contained in the first pixel group is disposed in a first column of the first pixel group and a first microlens contained in the second pixel group is disposed in a second column of the second pixel group,
- wherein each of the plurality of pixel groups further includes:
- a first light shielding structure disposed along an outer edge of the third unit pixel;
- a second light shielding structure disposed along an outer edge of the fourth unit pixel;
- a third light shielding structure disposed along outer edges of the first unit pixel and the second unit pixel, and
- wherein the first light shielding structure has a larger width than the second light shielding structure,
- wherein the third light shielding structure has a smaller width than the second light shielding structure, and
- wherein the first light shielding structure, the second light shielding structure and the third light shielding structure have openings having a square shape.
11 more elements
An image sensing device, comprising:
- a pixel array including pixel groups, each pixel group including unit pixels arranged in a (2×2) matrix and configured to respond to incident light and generate a signal corresponding to the incident light;
- and
- a processor electrically coupled to the pixel groups and configured to process the signal generated by unit pixels included in the pixel groups,
- wherein each pixel groups further includes:
- first to fourth unit pixels that include optical filters configured to transmit incident light of a same color;
- a microlens disposed to overlap with the first unit pixel and the second unit pixel, and
- wherein a light reception area of the third unit pixel has a size smaller than a size of a light reception area of the fourth unit pixel,
- wherein the processor is configured to generate phase difference data indicative of a phase difference between a first path for the incident light to reach the first unit pixel and a second path for the incident light to reach the second unit pixel,
- wherein the first unit pixel and the second unit pixel that are included in each of the plurality of pixel groups are located adjacent to each other in a row direction of each of the plurality of pixel groups,
- wherein the plurality of pixel groups further includes a first pixel group and a second pixel group that are located adjacent to each other in the row direction,
- wherein a first microlens contained in the first pixel group is disposed in a first row of the first pixel group and a first microlens contained in the second pixel group is disposed in a second row of the second pixel group,
- wherein each of the plurality of pixel groups further includes:
- a first light shielding structure disposed along an outer edge of the third unit pixel;
- a second light shielding structure disposed along an outer edge of the fourth unit pixel;
- a third light shielding structure disposed along outer edges of the first unit pixel and the second unit pixel, and
- wherein the first light shielding structure has a larger width than the second light shielding structure,
- wherein the third light shielding structure has a smaller width than the second light shielding structure, and
- wherein the first light shielding structure, the second light shielding structure and the third light shielding structure have openings having a square shape.
15 more elements
Dependencies are inferred from the claim text.