CN112804435A - Camera module and electronic equipment - Google Patents
Camera module and electronic equipment Download PDFInfo
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- CN112804435A CN112804435A CN202110248634.9A CN202110248634A CN112804435A CN 112804435 A CN112804435 A CN 112804435A CN 202110248634 A CN202110248634 A CN 202110248634A CN 112804435 A CN112804435 A CN 112804435A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/53—Constructional details of electronic viewfinders, e.g. rotatable or detachable
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- Color Television Image Signal Generators (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
The embodiment of the invention relates to a camera module and electronic equipment, wherein the camera module comprises: a light filtering module, an image sensor, and a photoelectric conversion module; the image sensor is provided with a photodiode, one side of the image sensor, which is provided with the photodiode, is provided with a light filtering module, and the opposite side of the image sensor, which is provided with the photodiode, is provided with a photoelectric conversion module; the filtering module comprises a plurality of groups of color bar sequences arranged at intervals, and the filtering module reciprocates along the direction vertical to the color bar sequences according to preset frequency; the reciprocating motion of design filtering module realizes that the single-layer filter is to the collection of three kinds of monochromatic light, compares in multilayer filter thickness thinner, based on photoelectric conversion module with three-colour photoelectron conversion to corresponding voltage signal, realizes making a video recording module and display module's lug connection, directly has left out links such as analog-to-digital conversion, image signal processing, reduces and makes a video recording the time delay of image display by the module of making a video recording.
Description
Technical Field
The embodiment of the invention relates to the field of semiconductors, in particular to a camera module and electronic equipment.
Background
The Image capturing device needs to perform display by the Image capturing and displaying device through analog-to-digital conversion, Image Signal Processing (ISP), processor Processing and other processes, and multiple transmission protocols are involved in the Signal interaction process between each link, that is, a plurality of modules for Processing photons and electrical signals are arranged between the Image capturing device and the displaying device, which causes a time delay phenomenon in the process from the framing and shooting of the Image capturing device to the displaying of the displaying device.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a camera module and an electronic device to solve the above technical problems or some technical problems.
In a first aspect, an embodiment of the present invention provides a camera module, including:
a light filtering module, an image sensor, and a photoelectric conversion module;
the image sensor is provided with a photodiode, the light filtering module is arranged on one side of the image sensor, where the photodiode is arranged, and the photoelectric conversion module is arranged on the opposite side of the image sensor, where the photodiode is arranged;
the filtering module comprises a plurality of groups of color bar sequences arranged at intervals, and the filtering module reciprocates along the direction perpendicular to the color bar sequences according to preset frequency.
In one possible embodiment, the filtering module further comprises a control unit;
the control unit is used for controlling the filtering module to reciprocate along the direction perpendicular to the color bar sequence according to a preset frequency.
In one possible embodiment, the sequence of color bars comprises a monochromatic filter;
the number of the color bar sequences is determined by the resolution of the camera module.
In one possible embodiment, the number of sets of the color bar sequence is: 3N +2, and N is an integer greater than or equal to 1.
In a possible embodiment, each group of the color stripe sequences corresponds to one column or one row of pixel points in the image sensor, and each pixel point is provided with one corresponding photodiode.
In one possible embodiment, the sequence of color bars comprises: a red filter, a green filter and a blue filter;
the filtering module at least comprises one of the following components:
n +1 sets of the red filters, N +1 sets of the green filters, and N sets of the blue filters;
or the like, or, alternatively,
n +1 sets of the red filters, N +1 sets of the blue filters, and N sets of the green filters;
or the like, or, alternatively,
n +1 sets of the green filters, N +1 sets of the blue filters, and N sets of the red filters;
wherein N is an integer of 1 or more.
In a possible embodiment, during the process that the filtering module moves back and forth along a direction perpendicular to the color bar sequences at a preset frequency, each row or each column of pixel points in the image sensor is covered by the color bar sequences of three different colors in one period.
In one possible embodiment, the photoelectric conversion module includes a plurality of charge determination units and a plurality of charge/voltage amplification units;
each pixel point in the image sensor is correspondingly provided with the charge determining unit and the charge/voltage amplifying unit;
the charge determining unit is provided with a first input end and a first output end, the charge/voltage amplifying unit is provided with a second input end and a second output end, and the first output end is connected with the second input end;
the first input end of the charge determining unit receives three-color photoelectrons in the lower potential well of each pixel point, determines the charge quantity corresponding to the three-color photoelectrons, and sends the charge quantity to the second input end of the charge/voltage amplifying unit from the first output end;
and the charge/voltage amplification unit converts a corresponding voltage signal according to the charge quantity and sends the voltage signal to the display module through the second output end.
In a second aspect, an embodiment of the present invention provides an electronic device, including the camera module according to any one of the first aspects.
In one possible implementation, the electronic device further includes:
a display module;
the display module is provided with a third input end, and the third input end is connected with the second input end of the charge/voltage amplification unit in the photoelectric conversion module and used for receiving a voltage signal corresponding to the image acquired by the camera module.
The module and electronic equipment of making a video recording that this embodiment provided, through add the filtering module before image sensor, and reciprocating motion through the filtering module of design realizes the collection of individual layer filter to three kinds of monochromatic light, compare in the thickness of multilayer filter thinner, the rethread gathers the three-colour photoelectron, be based on the voltage signal that photoelectric conversion module converts the three-colour photoelectron into corresponding, realize the lug connection of module and display module of making a video recording, analog-to-digital conversion has directly been left out, links such as image signal processing, reduce the time delay of making a video recording to image display by the module of making a video recording, the efficiency of making a video recording of the module of making a video.
Drawings
Fig. 1 is a schematic view of a camera module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a filter module according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a reciprocating movement of a filtering module relative to an image sensor according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a photoelectric conversion module according to an embodiment of the present invention;
fig. 5 is a schematic circuit structure diagram of a photoelectric conversion module according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the convenience of understanding of the embodiments of the present invention, the following description will be further explained with reference to specific embodiments, which are not to be construed as limiting the embodiments of the present invention.
Fig. 1 is a schematic view of a camera module according to an embodiment of the present invention, and as shown in fig. 1, the camera module specifically includes:
a filter module 100, an image sensor 200, and a photoelectric conversion module 300;
the image sensor 200 is provided with photodiodes, which are uniformly arranged in rows/columns on the image sensor to form a photosensitive array including a plurality of rows and a plurality of columns, and the intersection position of each row and each column is a photosensitive pixel (hereinafter collectively referred to as "pixel").
Further, the filtering module 100 is correspondingly disposed on one side of the image sensor 200 where the photodiodes are disposed to form the photosensitive array, the filtering module 100 is composed of a plurality of sets of color bar sequences 11 disposed at intervals, in an initial state, corresponding regions of the image sensor 200 and the filtering module 100 are different in size, and the filtering module 100 has two more sets of color bar sequences relative to the image sensor 200.
In this embodiment, the filter module 100 is movable relative to the image sensor 200, each set of color bar sequences in the filter module 100 can cover one row or one column of pixel points on the image sensor 200, and the filter module 100 reciprocates at a predetermined frequency along a direction perpendicular to the color bar sequences.
The image sensor 200 is provided with a photodiode to form a corresponding photoelectric conversion module 300 on the opposite side of the photosensitive array, and the photoelectric conversion module is used for converting photons collected by the image sensor into corresponding voltage signals.
It should be noted that the filter module 100 is arranged to add two sets of color bar sequences to the image sensor 200 for the purpose of: when the filtering module 100 reciprocates along a direction perpendicular to the color stripe sequence at a preset frequency, the situation that a certain row or a certain column of pixel points in the image sensor are not covered by the color stripe sequence is avoided, so that each row or each column of pixel points is correspondingly covered by the color stripe sequence in the reciprocating process of the filtering module 100.
In an alternative of the embodiment of the present invention, the multiple sets of color bar sequences in the filtering module 100 may be arranged horizontally or vertically, that is, each set of color bar sequences corresponds to one column of pixel points of the image sensor 200 when the color bar sequences are arranged vertically, and each set of color bar sequences corresponds to one row of pixel points of the image sensor 200 when the color bar sequences are arranged horizontally.
Each group of color bar sequences in the filtering module can cover one row or one column of pixel points in the image sensor by arranging the color bar sequences transversely or longitudinally, and the filtering module 100 can move back and forth along the direction perpendicular to the color bar sequences according to preset frequency, so that each row or each column of pixel points can be covered by different color bar sequences.
In an alternative of the embodiments of the present invention, the sequence of color bars comprises a monochromatic filter; the number of color bar sequences is determined by the resolution of the camera module.
Further, the monochromatic filter is: the red filter, the green filter and the blue filter, the filters of three different colors form a filter module according to the same arrangement sequence, correspondingly, the number of the filter groups can be determined by the resolution of the camera module, namely, the number of the filter groups can be determined according to pixel points corresponding to rows or columns in the resolution of the camera module.
For example, the resolution of the camera module is: 1080 × 960, if the optical filters adopt a longitudinal layout mode, each group of optical filters corresponds to 960 pixels in one column or 960 pixels in multiple columns, and the number of groups of optical filters can be determined according to 1080 pixels corresponding to the rows of the optical filters and the number of columns of pixels corresponding to each group of optical filters (for example, when each group of optical filters corresponds to 960 pixels in one column, the number of groups of optical filters is 1080+2 groups, and for example, when each group of optical filters corresponds to 960 pixels in 360 columns, the number of groups of optical filters is 3+2 groups).
In an alternative of the embodiment of the present invention, the number of sets of color bar sequences is: 3N +2, and N is an integer greater than or equal to 1, and the color bar sequence includes: a red filter, a green filter and a blue filter.
Accordingly, the filtering module 100 includes at least one of:
n +1 groups of red filters, N +1 groups of green filters and N groups of blue filters; or, N +1 groups of red filters, N +1 groups of blue filters and N groups of green filters; or, N +1 groups of green filters, N +1 groups of blue filters and N groups of red filters; wherein N is an integer of 1 or more.
Referring to fig. 1, a filter module 100 is shown comprising: 5 group's colour bar sequence, the resolution ratio of the module of making a video recording of hypothesis is: 1080 × 960, when each group of filters corresponds to 960 pixel points in 360 columns, the number of the groups of filters is: 3+2, the design combination of the filter corresponding to the filtering module can be:
the filter comprises a red filter, a green filter, a blue filter, a red filter and a green filter;
the color filter comprises a green filter, a red filter, a green filter and a red filter;
the color filter comprises a red filter, a blue filter, a green filter, a red filter and a blue filter;
the color filter comprises a blue filter, a red filter, a green filter, a blue filter and a red filter;
the color filter comprises a green filter, a blue filter, a red filter, a green filter and a blue filter;
blue filter, green filter, red filter, blue filter and green filter.
Referring to fig. 2, a schematic structural diagram of a filter module 100 according to an embodiment of the present invention is shown, where the filter module includes: 8 color bar sequences of group, the resolution ratio of the module of making a video recording of hypothesis is: 1080 × 960, when each group of filters corresponds to 960 pixels in 180 columns, the number of the groups of filters is: group 6+2, the filter may comprise: the design combination of the red filter 11, the green filter 12 and the blue filter 13, and the corresponding filters of the corresponding filtering modules may be:
a red filter 11, a green filter 12, a blue filter 13, a red filter 11, and a green filter 12;
a green filter 12, a red filter 11, a green filter 12, and a red filter 11;
a red filter 11, a blue filter 13, a green filter 12, a red filter 11, and a blue filter 13;
a blue filter 13, a red filter 11, a green filter 12, a blue filter 13, and a red filter 11;
a green filter 12, a blue filter 13, a red filter 11, a green filter 12, and a blue filter 13;
a blue filter 13, a green filter 12, a red filter 11, a blue filter 13, and a green filter 12.
In an alternative of the embodiment of the present invention, the filtering module 100 further includes a control unit 14; the control unit is configured to control the filter module 100 to move back and forth along a direction perpendicular to the color stripe sequence according to a predetermined frequency.
Further, during the process that the filtering module 100 moves back and forth along the direction perpendicular to the color bar sequences according to the preset frequency, each row or each column of pixel points in the image sensor 200 is covered by the color bar sequences of three different colors in one period.
The control unit 14 may be: the Micro-Electro-Mechanical System (MEMS) control unit may be any millimeter-scale control System capable of controlling the filter module 100 to reciprocate at a predetermined frequency in a direction perpendicular to the color bar sequence.
Referring to fig. 3, a schematic diagram illustrating a filter module according to an embodiment of the present invention reciprocating with respect to an image sensor is shown, and as shown in fig. 3, the filter module specifically includes:
the filter module 100 includes five sets of color bar sequences, which may be designed in the following manner: a red filter 11, a green filter 12, a blue filter 13, a red filter 11, and a green filter 15.
Suppose the resolution of the camera module is: 1080 × 960, each group of filters corresponds to 360 rows of 960 pixels, the photosensitive array in the image sensor 200 is divided into three rows (array 1, array 2, and array 3), and the description is given by taking an example that the photosensitive array reciprocates in a direction perpendicular to the filters to move left and right, and initially, three groups of filters (the red filter 11, the green filter 12, and the blue filter 13) in the filter module 100 are disposed corresponding to the image sensor 200 (that is, all pixels in the image sensor 200 are covered by three groups of filters).
It can be understood that: at t0At time, array 1 corresponds to red filter 11, array 2 corresponds to green filter 12, array 3 corresponds to blue filter 13, and at t0-t1The array 1 is covered by a red filter 11 during the time period; t is t1-t2The filtering module is to the left in the time period (i.e., period T in fig. 3)1In the direction of the arrow) at t2Time array 1 for green filter 12, array 2 for blue filter 13, array 3 for red filter 11, t2-t3Array 1 is covered by green filter 12 for a period of time, t3-t4The filtering module continues to the left for the time period (i.e., period T in fig. 3)1In the direction of the arrow) at t4Time array 1 corresponds to blue filter 13, array 2 corresponds to red filter 11, array 3 corresponds to green filter 12, t4-t5The array 1 is covered by the blue filter 13 during the time period, whereby the array 1 (red filter 11-green filter 12-blue filter 13) is covered by three different color filters during one cycle.
Accordingly, the sequence of the coverage of the corresponding filters of the array 2 in the period is: a green filter 12, a blue filter 13, and a red filter 11; the covering sequence of the corresponding filters of the array 3 is as follows: a blue filter 13, a red filter 11, and a green filter 12, so that when the arrays 1, 2, and 3 are covered by three different color filters, the image sensor 200 completes the acquisition of one frame of image.
The filter module continues moving to the right after completing the left movement for one period (period T in FIG. 3)2In the direction of the arrow) with t5The time being a period T2At a starting time of t4Time array 1 corresponds to blue filter 13, array 2 corresponds to red filter 11, array 3 corresponds to green filter 12, and at t5-t6The array 1 continues to be covered by the blue filter 13 for the time period; t is t5-t6The time segment filtering module moves to the right (period T in fig. 3)2In the direction of the arrow) at t6Time array 1 for green filter 12, array 2 for blue filter 13, array 3 for red filter 11, t6-t7The array 1 is covered by a green filter 12 over a period of time; t is t7-t8The time segment filtering module moves to the right (period T in fig. 3)2In the direction of the arrow) at t8At time, array 1 corresponds to red filter 11, array 2 corresponds to green filter 12, array 3 corresponds to blue filter 13, and at t8-t9The array 1 is covered by a red filter 11 during the time period, whereby the array 1 is completely covered by three different color filters during one cycle (blue filter 13-green filter 12-red filter 11).
Accordingly, the sequence of the coverage of the corresponding filters of the array 2 in the period is: a blue filter 13, a red filter 11, and a green filter 12; the covering sequence of the corresponding filters of the array 3 is as follows: a red filter 11, a green filter 12, and a blue filter 13, so that when the arrays 1, 2, and 3 are all covered by three different color filters, the image sensor 200 completes another frame of image acquisition.
It can be understood that: over a period T1And T2Completing a complete reciprocating movement of the filter module 100 (therefore, the predetermined frequency of the reciprocating movement of the filter module 100 can be determined according to the period T1And T2Determining), and simultaneously completing the acquisition of two frames of images, wherein the sequence of the covered optical filters of the array 1 in a complete reciprocating movement time period of the filtering module is as follows: red filter 11, green filter 12, blue filter 13, green filter 12, red filter 11.
For the time period (e.g., t) that the array is covered by the filter0-t1) And the time period (e.g., t) during which the filter is moved1-t2) The time periods can be set to be the same or different, and the specific values corresponding to the time periods can be set correspondingly according to the requirements of different camera modules, for example, the time period in which the array is covered by the optical filter is set to be 1ms, and the time period in which the optical filter moves is set to be 1 ms; for another example, the time period of the array covered by the optical filter is set to be 2ms, and the time period of the optical filter moving is set to be 1 ms; in this embodiment, specific data corresponding to a time period during which the array is covered by the filter and a time period during which the filter moves are not particularly limited.
It should be noted that, the filter module 100 shown in fig. 3 reciprocates relative to the image sensor 200 as an example of longitudinal arrangement of the monochromatic filter, and the present solution can also be implemented by transverse arrangement (the moving direction is up and down) of the monochromatic filter, the principle of which is similar to that of reciprocating in the longitudinal arrangement, and reference may be specifically made to the relevant description of fig. 3, which is not repeated herein.
In an alternative of the embodiment of the present invention, the photoelectric conversion module 300 includes a plurality of charge determining units 31 and a plurality of charge/voltage amplifying units 32.
A photodiode is correspondingly disposed at each pixel point on the image sensor 200, a photosensitive portion of the photodiode is exposed to incident light transmitted by the optical filter, the photosensitive portion is used for acquiring the incident light and generating accumulated electron-hole pairs (hereinafter, collectively referred to as "charges"), and a potential well under each pixel point captures R, G, B tri-color photoelectrons corresponding to the pixel point when the pixel point is covered by different optical filters, and converts the tri-color photoelectrons corresponding to each pixel point into three corresponding voltage signals (for example, a voltage signal corresponding to red photoelectrons, a voltage signal corresponding to green photoelectrons, and a voltage signal corresponding to blue photoelectrons) through a charge determining unit and a charge/voltage amplifying unit.
In an alternative of the embodiment of the present invention, the charge determining unit 31 has a first input terminal 311 and a first output terminal 312, the charge/voltage amplifying unit 32 has a second input terminal 321 and a second output terminal 322, and the first output terminal 312 is connected 321 to the second input terminal.
Referring to fig. 4, a schematic diagram of a photoelectric conversion module according to an embodiment of the present invention is shown, a photosensitive material is disposed under an image sensor, a potential well is disposed under each pixel of the image sensor, light is received by a first input terminal 311 of a charge determining unit 31 in a cycle through a three-color filter (a red filter, a green filter, and a blue filter), and three-color photoelectrons are generated by the image sensor, the charge determining unit 31 determines a corresponding charge amount according to the received three-color photoelectrons, and the charge amount is sent from a first output terminal 312 to a second input terminal 321 of a charge/voltage amplifying unit 32.
The charge/voltage amplification unit 32 converts the amount of charge into a corresponding voltage signal and transmits the voltage signal to the display device from the second output terminal 322.
Referring to fig. 5, a schematic diagram of a circuit structure of a photoelectric conversion module provided in an embodiment of the present invention is shown, which specifically includes:
the charge determining unit 31 may be a PNP type triode, the charge/voltage amplifying unit 32 may be a circuit composed of a feedback capacitor and a voltage amplifier, the positive electrode of the PNP type triode is used to obtain the charge quantity determined by photoelectrons through the PNP type triode, the charge quantity is output from the output terminal of the PNP type triode, the voltage signal corresponding to the charge quantity is determined by the feedback capacitor, and finally the voltage is amplified by the voltage amplifier and then output to the display module.
The module of making a video recording that this embodiment provided, through add the filtering module before image sensor, and reciprocating motion through the filtering module of design realizes single-layer filter to the collection of three kinds of monochromatic light, compare in multilayer filter thickness thinner, the rethread gathers the three-colour photoelectron, be corresponding voltage signal based on photoelectric conversion module with the photoelectronic conversion of three-colour, the module of making a video recording and display module's lug connection is realized, analog-to-digital conversion has directly been left out, links such as image signal processing, reduce and make a video recording the time delay of image display by the module of making a video recording, the efficiency of making a video recording of the module of making a video.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 6, the electronic device may be: image acquisition/display-capable devices (e.g., Mediated Reality (MR) glasses), the electronic device including in particular:
the camera module 1 and the display module 2;
the camera module 1 includes: the optical filter module 100, the image sensor 200, and the photoelectric conversion module 300, the optical filter module 100 includes: the control unit 14 disposed in the multi-color bar sequence, and the structure of the camera module 1 is similar to that of the camera module in fig. 1-5, and can refer to the related description of fig. 1-5, which is not repeated herein.
The display module 2 includes: a driving circuit board 201 and a pixel board 202, the driving circuit board 201 having a third input 2011 (not shown) and a third output 2012 (not shown), the pixel board 202 having a fourth input 2021 (not shown).
Further, the third input terminal 2011 of the driving circuit board 201 is connected to the second input terminal 322 (not shown in the figure) of the charge/voltage amplification unit 32 in the photoelectric conversion module 300 of the camera module 1, and is configured to receive a voltage signal corresponding to an image acquired by the camera module, so as to implement direct connection between the pixel module and the display module, and reduce a time delay of signal transmission therebetween.
The third output end 2012 of the driving circuit board 201 is connected to the fourth input end 2021 of the pixel board 202, and the driving circuit 201 is configured to match output voltages of different colors of the pixel points at different times with driving circuit voltages of corresponding sub-pixels in the display module, so that the pixel board 202 can obtain corresponding driving voltages from the driving circuit board 201 to drive the pixel board for displaying.
In an alternative of the embodiment of the present invention, in order to convert different photoelectrons corresponding to different color filters into corresponding voltage signals during the movement process, a first switch (corresponding to a red filter), a second switch (corresponding to a green filter), and a third switch (corresponding to a blue filter) are added in the driving circuit board to control the pixel board 202 when each row/column pixel point is covered by a different filter, and each pixel in the pixel board 202 includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel (as shown in a dotted line portion of 202 in fig. 6).
Further, at t0At time, array 1 corresponds to red filter 11, array 2 corresponds to green filter 12, array 3 corresponds to blue filter 13, and at t0-t1In the time period, the array 1 is covered by the red filter 11, at this time, the first switch is turned on, the second switch and the third switch are turned off, and when the array 1 is covered by the red filter 11, the voltage signal corresponding to the corresponding red photoelectrons can be directly input to the red sub-pixel; at t2-t3The array 1 is covered by the green filter 12 in a time period, at this time, the second switch is opened, and the voltage signal corresponding to green light electrons corresponding to the closed first switch and the closed third switch can be directly input to the green sub-pixel; at t4-t5The array 1 is covered by the blue filter 13 in the time period, at this time, the third switch is turned on, and the voltage signals corresponding to the blue photoelectrons corresponding to the first switch and the second switch which are turned off can be directly input to the blue sub-image, so that the display of the complete pixel point is realized.
In an alternative of the embodiment of the present invention, the electronic device may further include: the lens 3 and the lens 3 are disposed in front of the filter module 100 in the camera module 1, so that incident light is refracted through the lens 3 and projected onto the filter module 100.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a module of making a video recording which characterized in that includes:
a light filtering module, an image sensor, and a photoelectric conversion module;
the image sensor is provided with a photodiode, the light filtering module is arranged on one side of the image sensor, where the photodiode is arranged, and the photoelectric conversion module is arranged on the opposite side of the image sensor, where the photodiode is arranged;
the filtering module comprises a plurality of groups of color bar sequences arranged at intervals, and the filtering module reciprocates along the direction perpendicular to the color bar sequences according to preset frequency.
2. The camera module of claim 1, wherein the filter module further comprises a control unit;
the control unit is used for controlling the filtering module to reciprocate along the direction perpendicular to the color bar sequence according to a preset frequency.
3. The camera module of claim 1, wherein the sequence of color bars comprises a monochromatic filter;
the number of the color bar sequences is determined by the resolution of the camera module.
4. The camera module of claim 1, wherein the number of sets of color bar sequences is: 3N +2, and N is an integer greater than or equal to 1.
5. The camera module of claim 1, wherein each set of the color bar sequences corresponds to one column or one row of pixels in the image sensor, and each pixel is provided with one of the photodiodes.
6. A camera module according to any one of claims 1-5, characterized in that the sequence of color bars comprises: a red filter, a green filter and a blue filter;
the filtering module at least comprises one of the following components:
n +1 sets of the red filters, N +1 sets of the green filters, and N sets of the blue filters;
or the like, or, alternatively,
n +1 sets of the red filters, N +1 sets of the blue filters, and N sets of the green filters;
or the like, or, alternatively,
n +1 sets of the green filters, N +1 sets of the blue filters, and N sets of the red filters;
wherein N is an integer of 1 or more.
7. The camera module of claim 6, wherein during the filter module moves back and forth at a predetermined frequency in a direction perpendicular to the color stripe sequence, each row or column of pixels in the image sensor is covered by the color stripe sequence of three different colors in one period.
8. The camera module of claim 1, wherein the photoelectric conversion module comprises a plurality of charge determination units and a plurality of charge/voltage amplification units;
each pixel point in the image sensor is correspondingly provided with the charge determining unit and the charge/voltage amplifying unit;
the charge determining unit is provided with a first input end and a first output end, the charge/voltage amplifying unit is provided with a second input end and a second output end, and the first output end is connected with the second input end;
the first input end of the charge determining unit receives three-color photoelectrons in the lower potential well of each pixel point, determines the charge quantity corresponding to the three-color photoelectrons, and sends the charge quantity to the second input end of the charge/voltage amplifying unit from the first output end;
and the charge/voltage amplification unit converts a corresponding voltage signal according to the charge quantity and sends the voltage signal to the display module through the second output end.
9. An electronic device comprising the camera module of any one of claims 1-8.
10. The electronic device of claim 9, further comprising:
a display module;
the display module is provided with a third input end, the third input end is connected with a second input end of a charge/voltage amplification unit in a photoelectric conversion module of the camera module and used for receiving a voltage signal corresponding to an image acquired by the camera module.
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