Samsung Electronics Co., Ltd. (Gyeonggi-do, KR)

(a) Field

This technology can be applied to signal processing devices and techniques.

(b) Description of the Related Art

In digital cameras, photoelectric converter members have been created that use silicon as a single element. The silicon that is used in the photoelectric convertor member is the sole material that is held in place to the band gap. A color filter is then created over the photoelectric member. In order to create color images using only one plate, the photoelectric convertor member made of silicon as its single material should arrange red pixels and green pixels according to a surface direction.

In addition when a subject with a higher resolution is imaged by using the photoelectric conversion component, luminance moire or color moire could occur. To suppress luminance moire and color moire the optical low-pass filter is required to be installed in the imager. The resolution will decrease when the optical low-pass filter is installed inside the image apparatus.

Japanese Patent No. Japanese Patent No. 4700947. This patent reveals the photoelectric converter component that permits a silicon film that has green pixels to be placed onto one side. This is how incident light can be absorbed by the siliconfilm that has red and blue pixels. In such a photoelectric conversion member, since pixels that absorb green wavelength exist over the entire surface of the photoelectric conversion member it is possible to have no luminancemoire, and color moire could be substantially suppressed.

The photoelectric conversion component described by ‘947 patent may absorb some blue wavelength as well as the red wavelength. As a result, the colorreproducibility can be reduced as well as the noise resistance in the blue region could be deteriorated and the resolution of the color may be also deteriorated. U.S. Patent Application Publication Number. 2014/118579, also known as the “579application” is a proof of the green pixels signal can be corrected (absorption adjustment) using only one of the blue and red pixels.

The photoelectric conversion component described in ‘579 isn’t possible since the red and blue pixels are placed in a checkered order. Thus, quality of the color and resolution could be affected.

Click here to view the patent on USPTO website.


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