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Color filter array and its image receiving method

A color filtering and image receiving technology, applied in the field of color filter array and its image receiving, can solve the problems of increasing the manufacturing cost of image sensors and the like

Active Publication Date: 2017-10-17
NOVATEK MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

From the above, it can be known that the existing image sensor must use the infrared light cut filter and the components that move the infrared light cut filter, thereby increasing the manufacturing cost of the image sensor

Method used

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  • Color filter array and its image receiving method
  • Color filter array and its image receiving method
  • Color filter array and its image receiving method

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Embodiment Construction

[0034] Please refer to Figure 1A , Figure 1A It is a schematic diagram of a filtering pattern (pattern) 10 according to an embodiment of the present invention. The filter pattern 10 can be used in an image sensing device (such as a camera and other electronic devices with image sensing function). By repeatedly arranging the filter pattern 10, a color filter array in the image sensing device can be formed, so that the image sensing device can obtain image data with color information. Such as Figure 1A As shown, the filtering pattern 10 includes pixels P1 - P5 , and the pixels P1 - P5 correspond to red R, infrared IR1 , green G, infrared IR2 and blue B, respectively. That is to say, the pixels P1 - P5 are respectively used to receive light in different wavelength ranges. By repeatedly arranging the color filter array formed by the filter pattern 10, the image sensing device can obtain light intensity information of five different wavelength ranges at the same time. In this ...

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Abstract

The invention discloses a color filter array and an image receiving method. The color filter array is used for an image sensing device, and includes a plurality of filter patterns arranged repeatedly, wherein each filter pattern includes at least one first filter, corresponding to a first wavelength range of a first color; at least A second optical filter, corresponding to a second wavelength range of a second color; at least one third optical filter, corresponding to a third wavelength range of a third color; at least one fourth optical filter, corresponding to In a first infrared light wavelength range, wherein the first infrared light wavelength range is the overlapping wavelength range between the first wavelength range and the second wavelength range; and at least one fifth filter corresponding to a second infrared light Light wavelength range, wherein the second infrared light wavelength range is a wavelength range overlapping between the first wavelength range and the third wavelength range.

Description

technical field [0001] The invention relates to a color filter array and an image receiving method thereof, in particular to a color filter array capable of simultaneously detecting infrared light and visible light and an image receiving method thereof. Background technique [0002] Image sensors, such as complementary metal oxide semiconductor image sensor (CMOS image sensor, CIS) and charge-coupled (Charge-Coupled Device, CCD) image sensor, etc., have been widely used in digital cameras, personal digital assistants, tablet computers and smart Communication systems and other consumer electronics products. Generally speaking, an image sensor needs to use a color filter to sense visible light information of a specific color (such as red, blue, green) to obtain a color image. However, the color filter cannot filter infrared light (infrared ray, IR). If the image sensor receives the infrared light information, it will cause the color distortion of the color image. Therefore,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/04
Inventor 陈毅修王淑芳萧博仁
Owner NOVATEK MICROELECTRONICS CORP