WO2021258265A1

WO2021258265A1 - Image sensor, camera and electronic device

Info

Publication number: WO2021258265A1
Application number: PCT/CN2020/097531
Authority: WO
Inventors: 杜灿鸿
Original assignee: 深圳市汇顶科技股份有限公司
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-12-30
Also published as: CN114080798A; CN114080798B

Abstract

An image sensor, a camera and an electronic device, the image sensor comprising: at least one pixel block (10), the pixel block (10) comprising at least two pixel units (11) arranged consecutively, wherein the pixel units (11) comprises at least two pixels (111) having the same arrangement direction, and the arrangement direction comprises a first arrangement direction and a second arrangement direction; the pixel block (10) comprises at least one pixel unit (11) in a first arrangement direction and at least one pixel unit (11) in a second arrangement direction, the first arrangement direction being perpendicular to the second arrangement direction. According to an embodiment of the present application, the focusing performance of the image sensor is optimized, and an increase to the processing difficulty of the image sensor due to the small size of the pixel (111) is avoided, and an increase to the productization difficulty due to an excessive number of pixels in a pixel unit with the same size is also avoided.

Description

Image sensor, camera and electronic equipment

Technical field

The embodiments of the present application relate to the field of image processing technologies, and in particular, to an image sensor, a camera, and an electronic device.

Background technique

The image sensor senses the light signal emitted by the target through the pixels in its pixel unit and converts it into an electrical signal to obtain a corresponding image.

However, the existing image sensors have the following technical problems:

(1) The focusing performance of the image sensor is poor;

(2) The process difficulty and commercialization of the image sensor are relatively difficult.

Summary of the invention

In view of this, one of the technical problems solved by the embodiments of the present application is to provide an image sensor, a camera, and an electronic device to overcome or partially overcome the above-mentioned defects in the prior art.

In one aspect, an embodiment of the present application provides an image sensor, including: at least one pixel block, the pixel block includes at least two consecutively arranged pixel units, the pixel unit includes at least two pixels having the same arrangement direction, so The arrangement direction includes a first arrangement direction and a second arrangement direction; the pixel block includes at least one pixel unit in a first arrangement direction and at least one pixel unit in a second arrangement direction, the first arrangement direction and the second arrangement direction The arrangement direction is vertical.

On the other hand, an embodiment of the present application also provides a camera, including the image sensor described in any embodiment of the present application.

In another aspect, an embodiment of the present application also provides an electronic device, including the image sensor described in any embodiment of the present application.

In the technical solution of the embodiment of the present application, the pixel block of the image sensor includes at least one pixel unit in a first arrangement direction and at least one pixel unit in a second arrangement direction, and the first arrangement direction is perpendicular to the second arrangement direction, In this way, pixel units are provided along the first and second arrangement directions that are perpendicular to each other. The two pixels of the pixel units can form PDAF (Phase Detection Autofocus, Phase Detection Auto Focus) technical effects optimize the focus performance of the image sensor. In addition, the pixel unit described in the embodiment of the present application includes two pixels with the same arrangement direction, which avoids the increase in the process difficulty of the image sensor caused by the pixel size being too small, and also avoids the pixel unit of the same size including an excessive number of pixels. The difficulty of commercialization caused by pixels has increased.

Description of the drawings

Hereinafter, some specific embodiments of the embodiments of the present application will be described in detail in an exemplary but not restrictive manner with reference to the accompanying drawings. The same reference numerals in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the attached picture:

1A-1C are respectively a top view of a pixel unit in a pixel block of an image sensor, a side view of a Y-side view and a side view of the X-side view direction;

1D-1F are respectively a top view of a pixel unit in a pixel block of another image sensor, a side view of a Y side view and a side view of X side view;

2A to 2C are respectively a top view of a pixel unit in a pixel block of another image sensor, a side view of a Y side view, and a side view of X side view;

2D to 2F are respectively a top view, a side view of a Y side view, and a side view of a pixel unit in a pixel block of another image sensor;

2G to FIG. 2I are respectively a top view of a pixel unit in a pixel block of an image sensor according to an embodiment of the application, a side view of a Y side view and a side view of X side view;

FIG. 3A is a schematic diagram of a specific implementation of a sensor array formed by pixel blocks in an image sensor according to an embodiment of the application; FIG.

FIG. 3B is a schematic diagram of another specific implementation of forming a sensing array by pixel blocks in the image sensor according to the embodiment of the application; FIG.

FIG. 3C is a schematic diagram of still another specific implementation of the sensor array formed by the pixel blocks in the image sensor according to the embodiment of the application; FIG.

4A is a schematic diagram of still another specific implementation of forming a sensing array by pixel blocks in the image sensor according to the embodiment of the application;

4B is a schematic diagram of still another specific implementation of a sensor array formed by pixel blocks in an image sensor according to an embodiment of the application;

4C is a schematic diagram of still another specific implementation of the sensor array formed by the pixel blocks in the image sensor according to the embodiment of the application;

Fig. 4D is a schematic diagram of another specific implementation of forming a sensing array by pixel blocks in the image sensor according to the embodiment of the application.

detailed description

The implementation of any technical solution of the embodiments of the present application does not necessarily need to achieve all the above advantages at the same time.

In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the description The embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art should fall within the protection scope of the embodiments of the present application.

The specific implementation of the embodiments of the present application will be further described below in conjunction with the accompanying drawings of the embodiments of the present application.

For an image sensor, the pixels described in the following embodiments of the present application can be understood as: the smallest unit that can perform photoelectric conversion, each pixel corresponds to a photosensitive optical structure, and a pixel circuit that performs photoelectric conversion. For scenes where color image sensing can be applied, the optical structure can include microlenses, color filters, and light channels. If black-and-white image sensing is used, color filters can be omitted from the optical structure, or, with the application The optical structure of color image sensing is the same, but black and white image sensing is indirectly realized through software processing. For the pixel circuit, it can include optoelectronic devices and some functional circuits.

The pixel block (referred to as pixel sub in the industry) in the embodiments of the present application can be understood as: a combination of pixels that can be used periodically and continuously arranged when forming a sensing array of an image sensor.

The pixel unit (also referred to as a pixel cell in the industry) in the embodiments of the present application can be understood as: a combination of pixels forming the pixel block, the pixel unit can be divided into at least two pixels, and one pixel block can include at least two pixel units.

For an image sensor applied to a color image sensing scene, it can also be called a color image sensor. In the following embodiments, a color image sensor is taken as an example to illustrate the technical solution of the present application. Among them, the optical structure corresponding to a pixel 11 includes a microlens 111A, a color filter 111B, and a filler 111C. For the functions of the microlens 111A and color filter 111B, refer to the above description, and the filler 111C is used to form the above-mentioned optical channel. A barrier 111D for avoiding light crosstalk is provided between two adjacent pixels 11.

1A, one pixel block 10 includes four pixel units 11, one of which can be divided into four square pixels 111; the green (G), red (R), and blue (B) patterns of the color filter 111B are ) Are uniformly distributed on the four square pixel units 11 of the same pixel block 10, the above-mentioned microlens 111A is also arranged above the color filter 111B pattern, and one pixel corresponds to one microlens 111A. The pixel block shown in Figure 1A is also called a Bayer 2x2 RGGB array. Referring again to FIGS. 1B and 1C, a barrier 111D may be provided between every two adjacent pixels 111 to avoid light crosstalk between adjacent pixels 111, and each pixel 111 is formed by filler 111C. Light channel.

If the pixel block 10 shown in FIG. 1A is used to form the sensing array of the image sensor, since the filling space occupied by each pixel in the same pixel unit is square, and each pixel in the pixel unit individually corresponds to a micro lens, Therefore, PDAF (Phase Detection Auto Focus) technical effects cannot be achieved. In addition, because the pixel size in the pixel block 10 is small, the process difficulty of the image sensor increases, and the pixel unit of the same size includes an excessive number of pixels, which increases the difficulty of commercialization.

1D, the same as the above-mentioned FIG. 1A, a pixel block 10 includes four pixel units 11, one of the pixel unit 11 is divided into four square-filled pixels 111, and one pixel corresponds to a micro lens 111A; Unlike the above-mentioned FIG. 1A, the green or red or blue of the color filter 111B pattern is evenly distributed on the four pixel units 11 of the same pixel block 10. Therefore, compared to FIG. 1A, the color The size of the filter 111B becomes larger, thereby reducing the process difficulty and commercialization difficulty of the image sensor. Referring again to FIGS. 1E and 1F, similar to the above-mentioned FIGS. 1B and 1C, a barrier 111D is provided between every two adjacent pixels 111 to avoid light crosstalk between adjacent pixels 111.

The principle of focusing in FIG. 1D is similar to that in FIG. 1A, and will not be repeated here.

Referring to FIG. 2A, a pixel block 10 with the same size as that of FIG. 1A also includes four pixel units 11, the difference is that each pixel unit 11 is divided into two pixels 111 with the same arrangement direction instead of four pixels 111 . In this embodiment, for example, the arrangement direction of the pixels 111 in each pixel unit 11 is the vertical arrangement direction, so that the positional relationship between the two pixels 111 in the same pixel unit 11 is left and right, and the pixel on the left 111 takes the left image, and the right pixel 111 takes the right image, and then compares the correlation value (ie phase difference) of the left image and the right image to directly determine the position of the focus, thus realizing PDAF (Phase Detection Auto Focus) , Phase autofocus) technical effects, optimize the focus performance of the image sensor. However, since the arrangement direction of the pixels 111 in the four pixel units 11 included in the pixel block 10 in FIG. 2A is the same, that is, the arrangement direction of the pixel blocks 10 in the pixel unit 11 is the vertical arrangement direction, so that the image sensor The focusing performance of the horizontal arrangement direction is better, while the focusing performance of the vertical arrangement direction is poor.

In this embodiment, the pixel unit 11 described in FIG. 2A includes two pixels 111 having the same arrangement direction, which avoids the increase in the process difficulty of the image sensor caused by the too small size of the pixel 111, and also avoids pixels of the same size. The unit includes an excessive number of pixels, which increases the difficulty of commercialization.

2B and 2C, the color filter 111B pattern of all pixels 111 in the same pixel unit 11 has the same color. Compared with FIG. The process difficulty and commercialization difficulty of the image sensor are improved.

Referring to FIGS. 2D to 2F, if the pixel unit 11 is divided into four square pixels 111, the difference from the above-mentioned FIG. 1D is that the four pixels in each pixel unit share one microlens. Therefore, PDAF (phase Focusing) technical effect, and since the pixels 111 are arranged in both the horizontal arrangement direction and the vertical arrangement direction, the focusing performance of the image sensor in the horizontal arrangement direction and the vertical arrangement direction is better. However, since the pixel unit 111 is divided into four square pixels 111, compared to FIG. 2A, the size of the pixel 111 is relatively small, and the process is more difficult and difficult. As the size of the pixel 111 is reduced, the number of pixels 111 of the image sensor increases under the same size, which also increases the difficulty of the image sensor productization. The arrangement of the pattern of the color filter 111B and the microlens 111A in FIGS. 2D to 2F is similar to that in FIGS. 2A to 2C, and will not be repeated here.

2G to FIG. 2I are respectively a schematic plan view of a pixel block 10 in an image sensor in an embodiment of the application, and a side view of a Y side view and an X side view direction. In the pixel block 10, the pixel unit 11 includes two pixels 111 having the same arrangement direction, and the arrangement direction includes a first arrangement direction and a second arrangement direction. The pixel block 10 includes at least one pixel unit 11 in a first arrangement direction and at least one pixel unit 11 in a second arrangement direction, and the first arrangement direction is perpendicular to the second arrangement direction.

In this embodiment, since the pixel block 10 of the image sensor includes at least one pixel unit 11 in a first arrangement direction and at least one pixel unit 11 in a second arrangement direction, the first arrangement direction is perpendicular to the second arrangement direction, In this way, the pixel unit 11 is provided along the first and second arrangement directions that are perpendicular to each other. The two pixels 111 of the pixel unit 11 can achieve the PDAF technical effect in both the first arrangement direction and the second arrangement direction. Improve the focus performance of the image sensor. In addition, the pixel unit 11 of this embodiment includes two pixels 111 with the same arrangement direction, which avoids the increase in the process difficulty of the image sensor caused by the too small size of the pixel 111, and also prevents the pixel unit 11 of the same size from including too many pixels. The difficulty of commercialization of the image sensor caused by the large number of pixels 111 has increased.

Exemplarily, the first arrangement direction is a horizontal arrangement direction, and the second arrangement direction is a vertical arrangement direction. Illustratively, for example, in FIG. 2G, the arrangement direction of the pixels 111 in the pixel unit 11 in the upper left corner is the vertical arrangement direction, and the arrangement direction of the pixels 111 in the pixel unit 11 in the upper right corner is the horizontal arrangement direction. The embodiment of the present application is not limited to the horizontal arrangement direction and the vertical arrangement direction, as long as the first arrangement direction and the second arrangement direction can be realized to be perpendicular, for example, the first arrangement direction is the vertical arrangement direction, and the first arrangement direction is the vertical arrangement direction. The second arrangement direction is the horizontal arrangement direction.

Optionally, in this embodiment, the filling space occupied by each pixel 11 is rectangular, so that the pixel unit is square in the top view, while the commonly used microlens is bowl-shaped or hemispherical. When each pixel unit 11 includes When two pixels 111 share one micro lens, the pixel unit can be externally connected to the micro lens in the top view.

In another specific implementation of the embodiment of the present application, the color filter 111B included in the image sensor has a pattern regularly distributed on the pixel units 11 in the at least one first arrangement direction and the pixels in the at least one second arrangement direction. Unit 11 on.

Specifically, different color filters 111B may have different patterns, for example, the patterns of the color filter 111B may specifically include red, green, and blue.

Referring to FIGS. 2H and 2I again, the same as the above-mentioned FIG. 2A is that the colors of the color filter 111B patterns of all pixels 111 in the same pixel unit 11 are the same.

In this embodiment, the pattern of the color filter 111B is regularly distributed on the at least one pixel unit 11 in the first arrangement direction and the at least one pixel unit 11 in the second arrangement direction, and passes through different color filters 111B. Cooperating with the pixel units 11 in the first arrangement direction and the pixel units 11 in the second arrangement direction, different color sensor arrays can be formed.

In another specific implementation of the embodiment of the present application, referring to FIG. 3A, in the sensor array, the arrangement directions of the pixels 111 of any two adjacent pixel units 11 in the pixel units 11 included in the pixel block 10 are different. . Specifically, the arrangement directions of the pixels 111 of any two adjacent pixel units 11 in the horizontal arrangement direction of the sensor array are different, and, in the vertical arrangement direction of the sensor array, any two adjacent pixels 111 are arranged differently. The arrangement directions of the pixels 111 of the pixel unit 11 are different.

Therefore, the pixel units 11 are more evenly distributed in the horizontal arrangement direction and the vertical arrangement direction, so that the two pixels 111 of the pixel unit 11 can form a more uniform PDAF technology in both the horizontal arrangement direction and the vertical arrangement direction. Effect, thereby optimizing the uniformity of the focus direction of the image sensor.

In another specific implementation of the present application, referring to FIG. 3B, in each pixel block 10, the green (G) pattern of the color filter 111B is distributed among the pixels in the second arrangement direction in the pixel block 10. In unit 11, the red (R) and blue (B) patterns of the color filter 111B are evenly distributed in the pixel units 11 in the first arrangement direction in the pixel block 10.

Specifically, the green (G) pattern of the color filter 111B is distributed in the pixel units 11 in the vertical arrangement direction in the pixel block 10, and the red (R) and blue patterns of the color filter 111B are The color (B) is uniformly distributed in the pixel units 11 in the horizontal arrangement direction in the pixel block 10.

In this embodiment, because different color filters 111B are distributed on the pixel unit 11, different color sensor arrays are formed.

3B is only the green (G) pattern of the color filter 111B of the present application distributed in the pixel unit 11 in the vertical arrangement direction in the pixel block 10, and the red (R) and the red (R) of the color filter 111B pattern are distributed in the pixel block 10 Blue (B) is an implementation example of pixel units 11 uniformly distributed in the horizontal arrangement direction in the pixel block 10, and in this implementation example, any of the pixel units 11 included in the pixel block 10 The arrangement directions of the pixels 111 of two adjacent pixel units 11 are different. The embodiment of the present application is not limited to the distribution mode illustrated in FIG. 3B.

In this embodiment, the green (G) of the color filter 111B pattern, the red (R) of the color filter 111B pattern, and the blue (B) of the color filter 111B pattern are the three patterns themselves. The distribution in the pixel unit 11 is uniform, that is, the pixel unit 11 has the same number of red (R) patterned on the color filter 111B and blue (B) patterned on the color filter 111B, and the pattern of the color filter 111B is the same. The number of green (G) is twice the number of red (R) of the color filter 111B pattern and the number of blue (B) of the color filter 111B pattern, so it can achieve better spatial resolution.

In another specific implementation of the present application, referring to FIG. 3C, the red (R), blue (B) and green (G) patterns of the color filter 111B are evenly distributed in the pixel block 10 The pixel units 11 in one arrangement direction and the pixel units 11 in the second arrangement direction.

Specifically, the red (R), blue (B), and green (G) patterns of the color filter 111B are evenly distributed in the pixel units 11 in the vertical arrangement direction in the pixel block 10 and the Pixel units 11 in the horizontal arrangement direction. For example, the green (G) pattern of the color filter 111B is evenly distributed in the pixel units 11 in the horizontal arrangement direction and the vertical arrangement direction of the pixel block 10, and the red (G) pattern of the color filter 111B pattern R) and blue (B) are evenly distributed in the pixel units 11 in the horizontal arrangement direction and the vertical arrangement direction in the pixel block 10.

Referring again to FIG. 3C, in the pixel block 10 in the upper left corner and the pixel block 10 in the upper right corner, the red (R) of the color filter 111B pattern is arranged in a horizontal arrangement direction and a vertical arrangement direction, respectively. The arrangement direction of the blue color (B) of the filter 111B pattern is the vertical arrangement direction and the horizontal arrangement reverse.

3C is only the red (R), blue (B) and green (G) of the color filter 111B pattern of the present application evenly distributed in the vertical arrangement direction of the pixel unit 11 and the pixel block 10 An implementation example of the pixel units 11 in the horizontal arrangement direction is described, and in this implementation example, the arrangement directions of the pixels 111 of any two adjacent pixel units 11 in the pixel units 11 included in the pixel block 10 are different. It should be noted that the pixels opposite in the diagonal direction are not the "adjacent" pixels as referred to in this application. The embodiment of the present application is not limited to the distribution mode illustrated in FIG. 3C.

Since in the image sensor of the embodiment of the present application, the pixel units 11 are evenly distributed in the vertical arrangement direction and the horizontal arrangement direction, a better PDAF focusing effect can be achieved in both the horizontal arrangement direction and the vertical arrangement direction.

In another specific implementation of the embodiment of the present application, referring to FIG. 4A, the arrangement directions of the pixels 111 of a column of pixel units 11 in the pixel units 11 included in the pixel block 10 are the same, and the pixels 111 of the pixel units 11 of two adjacent columns are arranged in the same direction. The arrangement direction is different.

Specifically, in FIG. 4A, the arrangement direction of the pixels 111 of the first column of pixel units 11 is the horizontal arrangement direction, the arrangement direction of the pixels 111 of the second column of pixel units 11 is the vertical arrangement direction, and the arrangement direction of the pixels 111 of the third column of pixel units 11 is the vertical arrangement direction. The arrangement direction of the pixels 111 is the horizontal arrangement direction, and the arrangement direction of the pixels 111 of the pixel unit 11 in the fourth column is the vertical arrangement direction.

In FIG. 4A, the arrangement direction of the pixels 111 of one column of the pixel units 11 in the pixel unit 11 included in the pixel block 10 is the same, and the arrangement directions of the pixels 111 of the pixel units 11 in two adjacent columns are different. Each pixel 111 is arranged in the same manner. The arrangement of the pixels 111 is more regular, thereby reducing the difficulty of designing the wiring of the pixel circuit such as the readout circuit. However, the example in FIG. 4A is only an implementation example. , The embodiments of this application are not limited to this.

In another specific implementation of the present application, referring to FIG. 4B, the color filter pattern is shown on the sensor array shown in FIG. 4B. Specifically, the green color (G) of the color filter pattern is uniform The pixel units 11 in the first arrangement direction and the pixel units 11 in the second arrangement direction are distributed in the pixel block 10, and the blue (B) pattern of the color filter 111B is distributed in the pixels The pixel units 11 in the first arrangement direction in the block 10, the red (R) pattern of the color filter 111B is distributed in the pixel units 11 in the second arrangement direction in the pixel block 10, so that the The green (G) pattern of the color filter 111B has good PDAF focusing performance in both the horizontal arrangement direction and the vertical arrangement direction, and the blue (B) pattern of the color filter 111B is arranged in the vertical direction All have good PDAF focusing performance, and the red (R) pattern of the color filter 111B has good PDAF focusing performance in the horizontal arrangement direction. In addition, since each pixel 111 in the same column of pixels 111 is arranged in the same manner, the arrangement of the pixels 111 is more regular, thereby reducing the difficulty of the wiring design of the pixel circuit such as the readout circuit.

Specifically, in FIG. 4B, for each pixel block 10 in the sensing array, the green (G) pattern of the color filter 111B is evenly distributed in the pixel units 11 in the horizontal arrangement direction in the pixel block 10. And the pixel units 11 in the vertical arrangement direction, the blue (B) pattern of the color filter 111B is distributed in the pixel units 11 in the horizontal arrangement direction in the pixel block 10, and the color filter The red (R) of the 111B pattern is distributed in the pixel units 11 in the vertical arrangement direction in the pixel block 10.

4B is only that the green (G) of the color filter 111B pattern is uniformly distributed in the pixel units 11 in the horizontal arrangement direction and the pixel units 11 in the vertical arrangement direction in the pixel block 10. The blue (B) pattern of the color filter 111B is distributed in the pixel unit 11 in the horizontal arrangement direction in the pixel block 10, and the red (R) pattern of the color filter 111B is distributed in the pixel block 10 The two different examples of the pixel units 11 in the vertical arrangement direction described in the embodiment of the present application are not limited thereto.

In this embodiment, since the green (G) of the color filter 111B pattern, the red (R) of the color filter 111B pattern, and the blue (B) of the color filter 111B pattern are themselves described The distribution in the pixel unit 11 is uniform, that is, the pixel unit 11 has the same number of red (R) patterned on the color filter 111B and blue (B) patterned on the color filter 111B, and the pattern of the color filter 111B is the same. The number of green (G) is twice the number of red (R) of the color filter 111B pattern and the number of blue (B) of the color filter 111B pattern, so it can achieve better spatial resolution. At the same time, the green (G) pattern of the color filter 111B is evenly distributed between the pixel units 11 in the vertical arrangement direction and the pixel units 11 in the horizontal arrangement direction, so the green color of the color filter 111B pattern (G) It has good PDAF focusing performance in both the horizontal arrangement direction and the vertical arrangement direction.

In another specific implementation of the present application, referring to FIG. 4C, the green, blue, and red colors of the color filter 111B pattern are evenly distributed in the pixel units 11 in the first arrangement direction and the pixel units 11 in the pixel block 10. The pixel unit 11 in the second arrangement direction is described.

Specifically, for example, the green, blue, and red colors of the color filter 111B pattern are evenly distributed in the pixel units 11 in the horizontal arrangement direction and the pixel units 11 in the vertical arrangement direction in the pixel block 10 .

In this embodiment, since the green (G) of the color filter 111B pattern, the red (R) of the color filter 111B pattern, and the blue (B) of the color filter 111B pattern are evenly distributed in the vertical The pixel unit 11 in the arrangement direction and the pixel unit 11 in the horizontal arrangement direction, so the green (G) pattern of the color filter 111B, the red (R) pattern of the color filter 111B and the blue pattern of the color filter 111B Color (B) can achieve better PDAF focusing effect in both the horizontal arrangement direction and the vertical arrangement direction.

In another specific implementation of the present application, referring to FIG. 4D, the green, blue, and red patterns of the color filter 111B are evenly distributed in the pixel units 11 in the first arrangement direction and the pixel units 11 in the pixel block 10. The pixel unit 11 in the second arrangement direction is described. Compared with FIG. 4C, the difference is at least that, in FIG. 4C, the green colors of the two color filter 111B patterns are evenly distributed in the same row of the pixel block 10 and the pixel units 11 in the first arrangement direction and For the pixel units 11 in the second arrangement direction, the blue and red colors of the color filter 111B pattern are evenly distributed in the same row of the pixel block 10 and the pixel units 11 in the first arrangement direction and the The pixel units 11 in the second arrangement direction; and in FIG. 4D, the green colors of the two color filter 111B patterns are evenly distributed in the pixel block 10 in the diagonal pixel units 11 in the first arrangement direction. And the pixel units 11 in the second arrangement direction, the blue and red colors of the color filter 111B pattern are evenly distributed in the pixel block 10 and the pixel units 11 in the first arrangement direction diagonally opposite to each other. The pixel unit 11 in the second arrangement direction is described.

An embodiment of the present application also provides a camera, which may include the image sensor described in any of the embodiments of the present application.

An embodiment of the present application also provides an electronic device, which may include the image sensor described in any of the embodiments of the present application.

So far, specific embodiments of the subject matter have been described. Other embodiments are within the scope of the appended claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or sequential order shown in order to achieve the desired result. In certain embodiments, multitasking and parallel processing may be advantageous.

In a typical configuration, the electronic device may include one or more processors (CPU), input/output interfaces, network interfaces, and memory.

The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM). Memory is an example of computer readable media.

Computer-readable media includes permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by electronic devices. According to the definition in this article, computer-readable media does not include transitory media, such as modulated data signals and carrier waves.

It should also be noted that the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or equipment including a series of elements includes not only those elements, but also Other elements that are not explicitly listed, or include elements inherent to such processes, methods, commodities, or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, product, or equipment that includes the element. The term "any two adjacent pixels" does not include pixels facing or adjoining in a diagonal direction.

The same or similar parts in the various embodiments in this specification can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, as for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

The above descriptions are only examples of this application, and are not intended to limit this application. For those skilled in the art, this application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the scope of the claims of this application.

Claims

An image sensor, characterized by comprising: at least one pixel block, the pixel block comprising at least two consecutively arranged pixel units,

The pixel unit includes two pixels having the same arrangement direction, and the arrangement direction includes a first arrangement direction and a second arrangement direction;

The pixel block includes at least one pixel unit in a first arrangement direction and at least one pixel unit in a second arrangement direction, and the first arrangement direction is perpendicular to the second arrangement direction.
The image sensor according to claim 1, wherein the pixel units of any two adjacent pixel units included in the pixel block have different pixel arrangements.
The image sensor according to claim 1, wherein, among the pixel units included in the pixel block, the arrangement directions of pixels located in the same column of pixel units are the same, and the arrangement directions of pixels of the pixel units in two adjacent columns are different.
The image sensor according to any one of claims 2-3, wherein the image sensor further comprises:

A color filter, wherein the color filter pattern is regularly distributed on the pixel units in the at least one first arrangement direction and the pixel units in the at least one second arrangement direction.
The image sensor according to claim 4, wherein the green color of the color filter pattern is distributed in the pixel units in the second arrangement direction in the pixel block, and the red color of the color filter pattern is The blue color is evenly distributed in the pixel units in the first arrangement direction in the pixel block.
The image sensor according to claim 4, wherein the red, blue, and green colors of the color filter pattern are evenly distributed in the pixel units in the first arrangement direction and the second pixel block in the pixel block. Two pixel units in the arrangement direction.
The image sensor according to claim 4, wherein the green color of the color filter pattern is uniformly distributed in the pixel units in the first arrangement direction and the pixels in the second arrangement direction in the pixel block. Unit, the blue color of the color filter pattern is distributed in the pixel unit in the first arrangement direction in the pixel block, and the red color of the color filter pattern is distributed in the second arrangement in the pixel block The direction of the pixel unit.
The image sensor according to claim 1, wherein the image sensor further comprises a micro lens, and the filled space occupied by each pixel of the pixel unit is a rectangle.
The image sensor according to claim 1, wherein two pixels included in the pixel unit share one microlens.
A camera, characterized by comprising the image sensor according to any one of claims 1-9.
An electronic device, characterized by comprising the image sensor according to any one of claims 1-9.