Smartphones with 100 million pixel sensor are on the market. After that, it is expected to mount a higher resolution mobile camera module of 200 million pixels or more. In order to develop high resolution sensor products by mounting more pixels in a limited space, it is necessary to reduce the size of the pixels. There are currently sensors on the market with 0.64um pixels. It is expected that sensors with smaller pixels will be developed in the future. In terms of image quality, the smaller the pixel size, the smaller the amount of light received. Therefore, the image quality deteriorates in terms of noise and crosstalk. To overcome this limitation, various high sensitivity sensors are being developed, and it is advantageous to mount Nano Prism in the development of high sensitivity sensor. In this paper, we introduce the image quality performance of CMOS image sensor equipped with Nano Prism.
Recently, smartphones are equipped with high resolution mobile camera modules of 100 million pixels or more. After that, it is expected that much higher resolution mobile camera modules will be mounted. However, in order to mount more pixels in a limited space, the pixel size must be reduced. If 1.0 um pixel sensor was the mainstream in the past, now 0.64um pixel sensor has been developed now, and a sensor with smaller pixel will be developed in the future. However, there are technical limitations. In terms of image quality of sensor, if the size of pixel becomes smaller, the amount of light received decreases, and the image quality in terms of noise becomes poor. In order to solve this limitation, an attempt is made to develop a high-sensitivity sensor in various ways. One of them is the image sensor using CMY color filter technology. CMY color filter has higher sensitivity than RGB, so it is advantageous for developing high sensitivity sensors. In this paper, we introduce a method to Image quality evaluate the CMOS image sensor equipped with CMY color filter in mobile devices.