Image sensor including pixel array and mobile terminal
An image sensor and a mobile terminal are provided. The image sensor includes a pixel array, where the pixel array includes a preset quantity of pixel units arranged in a predetermined manner. The pixel unit includes a first pixel and a second pixel. The first pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the second pixel includes a green sub-pixel, a preset sub-pixel, and at least one of a red sub-pixel and a blue sub-pixel. Both the first pixel and the second pixel are full-pixel dual-core focusing pixels, and each of the first pixel and the second pixel includes four full-pixel dual-core focusing sub-pixels. The preset sub-pixel receives an infrared band and one of a red band, a green band, and a blue band, or the preset sub-pixel receives an infrared band, a red band, a green band, and a blue band.
1. An image sensor, comprising:
a pixel array, wherein the pixel array comprises a preset quantity of pixel units arranged in a predetermined manner, and the pixel unit comprises a first pixel and a second pixel adjacent to the first pixel; the first pixel comprises a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the second pixel comprises a green sub-pixel, a preset sub-pixel, and at least one of a red sub-pixel and a blue sub-pixel;
both the first pixel and the second pixel are full-pixel dual-core focusing pixels, and each of the first pixel and the second pixel comprises four full-pixel dual-core focusing sub-pixels; and
the preset sub-pixel receives an infrared band and one of a red band, a green band, and a blue band, or the preset sub-pixel receives an infrared band, a red band, a green band, and a blue band;
wherein a position of a half preset sub-pixel in the second pixel is the same as a position of a half red sub-pixel, a half green sub-pixel, or a half blue sub-pixel in the first pixel, and half preset sub-pixels of two adjacent second pixels form the preset sub-pixel.
2. The image sensor according to claim 1 , wherein
a position of the preset sub-pixel in the second pixel is the same as a position of the red sub-pixel, the green sub-pixel, or the blue sub-pixel in the first pixel; or
a position of the preset sub-pixel in the second pixel is the same as a position of a first combined sub-pixel in the first pixel or the same as a position of a second combined sub-pixel in the first pixel; wherein
the first combined sub-pixel is a combination of half the red sub-pixel and half the green sub-pixel that are adjacent; and the second combined sub-pixel is a combination of half the green sub-pixel and half the blue sub-pixel that are adjacent.
3. The image sensor according to claim 2 , wherein the pixel unit comprises one second pixel and at least one first pixel.
4. The image sensor according to claim 1 , wherein in the pixel unit, a quantity of the second pixels is two, and a quantity of the first pixels is greater than or equal to zero.
5. The image sensor according to claim 1 , wherein the preset sub-pixel is used to receive a blue hand and an infrared band; and
the preset sub-pixel comprises a semiconductor layer, a metal layer, a photodiode, a first color filter, and a micromirror that are stacked in order, wherein the first color filter comprises a blue filter and an infrared filter.
6. The image sensor according to claim 1 , wherein the preset sub-pixel is used to receive a green hand and an infrared band; and
the preset sub-pixel comprises a semiconductor layer, a metal layer, a photodiode, a second color filter, and a micromirror that are stacked in order, wherein the second color filter comprises a green filter and an infrared filter.
7. The image sensor according to claim 1 , wherein the preset sub-pixel is used to receive a red band and an infrared band; and
the preset sub-pixel comprises a semiconductor layer, a metal layer, a photodiode, a third color filter, and a micromirror that are stacked in order, wherein the third color filter comprises a red filter and an infrared filter.
8. The image sensor according to claim 1 , wherein the preset sub-pixel is used to receive a red band, a green band, a blue hand, and an infrared band; and
the preset sub-pixel comprises a semiconductor layer, a metal layer, a photodiode, a fourth color filter, and a micromirror that are stacked in order, wherein the fourth color filter comprises a red filter, a green filter, a blue filter, and an infrared filter.
9. The image sensor according to claim 1 , wherein the red sub-pixel comprises a semiconductor layer, a metal layer, a photodiode, a red filter, and a micromirror that are stacked in order;
the green sub-pixel comprises a semiconductor layer, a metal layer, a photodiode, a green filter, and a micromirror that are stacked in order; and
the blue sub-pixel comprises a semiconductor layer, a metal layer, a photodiode, a blue filter, and a micromirror that are stacked in order.
10. The image sensor according to claim 1 , wherein the image sensor is a complementary metal oxide semiconductor (CMOS) image sensor, a charge-coupled device (CCD) image sensor, or a quantum thin-film image sensor.
11. A mobile terminal, comprising an imaging system, wherein the imaging system comprises:
the image sensor according to claim 1 ;
a lens module;
a drive module configured to drive movement of the lens module;
a filter module disposed between the lens module and the image sensor;
an image data processing module connected to the image sensor; and
a display module connected to the image data processing module.
12. The mobile terminal according to claim 11 , wherein the filter module is capable of allowing light with a wavelength of 380 nm to 1100 nm to pass.
13. The mobile terminal according to claim 11 , wherein
a position of the preset sub-pixel in the second pixel is the same as a position of the red sub-pixel, the green sub-pixel, or the blue sub-pixel in the first pixel; or
a position of the preset sub-pixel in the second pixel is the same as a position of a first combined sub-pixel in the first pixel or the same as a position of a second combined sub-pixel in the first pixel; wherein
the first combined sub-pixel is a combination of half the red sub-pixel and half the green sub-pixel that are adjacent; and the second combined sub-pixel is a combination of half the green sub-pixel and half the blue sub-pixel that are adjacent.
14. The mobile terminal according to claim 13 , wherein the pixel unit comprises one second pixel and at least one first pixel.
15. The mobile terminal according to claim 11 , wherein in the pixel unit, a quantity of the second pixels is two, and a quantity of the first pixels is greater than or equal to zero.
16. The mobile terminal according to claim 11 , wherein the preset sub-pixel is used to receive a blue band and an infrared band; and
the preset sub-pixel comprises a semiconductor layer, a metal layer, a photodiode, a first color filter, and a micromirror that are stacked in order, wherein the first color filter comprises a blue filter and an infrared filter.
17. The mobile terminal according to claim 11 , wherein the preset sub-pixel is used to receive a green band and an infrared band; and
the preset sub-pixel comprises a semiconductor layer, a metal layer, a photodiode, second color filter, and a micromirror that are stacked in order, wherein the second color filter comprises a green filter and an infrared filter.
18. The mobile terminal according to claim 11 , wherein the preset sub-pixel is used to receive a red band and an infrared band; and
the preset sub-pixel comprises a semiconductor layer, a metal layer, a photodiode, a third color filter, and a micromirror that are stacked in order, wherein the third color filter comprises a red filter and an infrared filter.