Samsung Electronics Co., Ltd.

Jung-yeon Kim

Hiromichi Tanaka

Jin-Hak Kim

Tanaka Hiromichi

A color filter array may include two or more yellow filter pixels, one or more green filter pixels, and one or more cyan filter pixels. The two or more yellow filter pixels may be disposed in a first row or rows in a first direction. The one or more green filter pixels and the one or more cyan filter pixels may be disposed in a second row or rows in the first direction. The first row or rows and the second row or rows may alternate in a second direction perpendicular to the first direction. In the second direction, either the one or more green filter pixels and at least one of the two or more yellow filter pixels alternate or the one or more cyan filter pixels and at least one of the two or more yellow filter pixels alternate.

Image sensors, color filter arrays included in the image sensors, and image pickup apparatuses including the image sensors

An apparatus includes an array of color-selective sensors arranged as a plurality of repeating 2&#xd7;2 unit pixel groups. Each sensor of a unit pixel group of the array is selective for a color including a green component. The unit pixel group includes respective sensors selective for respective first and second colors and two sensors selective for a third color. Signals from the sensors of the unit pixel groups may define a first color signal space, and the apparatus may further include an image processor circuit configured to receive image sensor signals from the array of color-selective sensors and to process the image sensor signals to generate image signals in a second color signal space.

Image sensor apparatus and methods employing unit pixel groups with overlapping green spectral content

An image sensor includes a color filter array including a primary color pixel such as a green filter pixel for sensing a predetermined primary color, a first secondary color pixel such as a yellow filter pixel, and a second secondary color pixel such as a cyan filter pixel. The primary color pixel, the first secondary color pixel, and the second secondary color pixel form different area ratios in the color filter array. For example, the area ratio of the yellow filter pixel to the cyan filter pixel and the green filter pixel is 2:1:1 in the color filter array. In addition, the color filters of the pixels are compensated for crosstalk effect. Such an image sensor has enhanced color reproducibility and sensitivity.

Color filter array with reduced crosstalk effect and image sensor and image pickup apparatus having the same

A color filter array of a CMOS image sensor according to an example embodiment may include microlenses, color filters, and/or pixels. The microlenses may be configured to condense incident light. The color filters may be configured to extract colors from light passed through the microlenses. The pixels may be configured to receive colors from the color filters. The color filters may include yellow, green, and cyan filters. A transmission spectrum of select filters may be shifted to offset crosstalk effects from peripheral pixels based on a measured wavelength variation in each select pixel.

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Busan, South Korea

Jung-yeon Kim