CN105338229A - Camera module - Google Patents

Abstract

The embodiment of the present invention discloses a camera module. The camera module includes: a circuit connection substrate and an image sensor disposed on the circuit connection substrate. The camera module also includes a color filter layer; wherein, The color filter layer is arranged on the image sensor and away from the surface of the circuit connection substrate side; wherein each pixel in the color filter layer receives the color according to the color received by each pixel itself The panchromatic photosensitive information of each pixel is obtained.

Description

A camera module

technical field

The invention relates to the field of information technology, in particular to a camera module.

Background technique

In an existing camera module, a color filter array (ColorFilterArray, CFA) is usually installed above an image sensor of the camera module to realize a color pattern. A pixel in the color filter array can only receive one of the three primary colors of red, green and blue, and the panchromatic photosensitive information of a pixel needs to have three colors of red, green and blue; therefore, it is necessary to combine multiple adjacent The information of pixels of different colors is synthesized, and then the color interpolation compensation is performed through the mosaic algorithm to obtain the full-color photosensitive information of a pixel.

Because there is a difference in displacement between adjacent pixels, errors will occur when using the same color data. Therefore, it is impossible to meet the higher demands of photography lovers on fineness performance, so that the user's experience effect is poor.

Contents of the invention

In view of this, the embodiment of the present invention expects to provide a camera module, which solves the problem of obtaining the full-color photosensitive information of a pixel in the color filter array of the existing camera module, and the need to combine the information of multiple adjacent pixels with different colors. The synthesized questions meet the user's higher precision requirements and improve the user's experience effect.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A camera module, the camera module includes: a line connection substrate and an image sensor arranged on the line connection substrate, the camera module also includes: a color filter layer; wherein,

The color filter layer is disposed on the image sensor, and is away from the surface of the circuit connection substrate side;

Each pixel in the color filter layer obtains its own full-color photosensitive information according to the color it receives.

Optionally, the color filter layer includes: an electrochromic film layer.

Optionally, the electrochromic film layer includes: a first electrochromic film layer disposed on the image sensor and away from the surface of the circuit connection substrate.

Optionally, the material of the first electrochromic film layer is an organic electrochromic material.

Optionally, the electrochromic film layer further includes: a second electrochromic film layer disposed on the surface of the first electrochromic film layer away from the image sensor.

Optionally, the materials of the first electrochromic film layer and the second electrochromic film layer are both inorganic electrochromic materials.

Optionally, the camera module further includes a third electrochromic film layer disposed on the surface of the second electrochromic film layer away from the first electrochromic film layer.

Optionally, materials of the first electrochromic film layer, the second electrochromic film layer and the third electrochromic film layer are all inorganic electrochromic materials.

Optionally, the thicknesses of the first electrochromic film layer, the second electrochromic film layer and the third electrochromic film layer are 200 nm˜2500 nm.

Optionally, the color filter layer includes: a liquid crystal layer, a color filter array, and a polarizer; wherein,

The polarizer is arranged on the surface of the image sensor on a side away from the circuit connection substrate;

The color filter array is arranged on the surface of the polarizer on a side away from the image sensor;

The liquid crystal layer is disposed on the surface of the color filter array on a side away from the polarizer.

The camera module provided by the embodiment of the present invention includes a circuit connection substrate, a color filter layer, and an image sensor disposed on the circuit connection substrate. Each pixel in the color filter layer obtains the color of each pixel according to the color it receives. Respective full-color photosensitive information, therefore, each pixel of the color filter layer in the camera module can receive all the colors in the three primary colors of red, green and blue after multiple exposures, and each pixel can use each pixel The color received by itself obtains the full-color photosensitive information of each pixel; in this way, it solves the problem of obtaining the full-color photosensitive information of a pixel in the color filter array of the existing camera module, which needs to combine the images of multiple adjacent pixels with different colors The problem of information synthesis meets the user's higher precision requirements and improves the user's experience effect.

Description of drawings

FIG. 1 is a schematic diagram of a hardware structure of a mobile terminal provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a communication system that a mobile terminal can operate according to an embodiment of the present invention;

3 is a schematic cross-sectional structure diagram of a camera module provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of a pixel arrangement structure provided by an embodiment of the present invention;

5 is a schematic cross-sectional structure diagram of another camera module provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a control circuit provided by an embodiment of the present invention;

7 is a schematic cross-sectional structure diagram of another camera module provided by an embodiment of the present invention;

Fig. 8 is a schematic cross-sectional structure diagram of a camera module provided by another embodiment of the present invention;

9 is a schematic cross-sectional structure diagram of another camera module provided by another embodiment of the present invention;

FIG. 10 is a schematic cross-sectional structure diagram of yet another camera module provided by another embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

A mobile terminal implementing various embodiments of the present invention will now be described with reference to FIG. 1 . In the following description, use of suffixes such as 'module', 'part' or 'unit' for denoting elements is only for facilitating description of the present invention and has no specific meaning by itself. Therefore, "module" and "component" may be used mixedly.

Mobile terminals may be implemented in various forms. For example, terminals described in the present invention may include devices such as mobile phones, smart phones, notebook computers, digital broadcast receivers, personal digital assistants (PDAs), tablet computers (PADs), portable multimedia players (PMPs), navigation devices, etc. mobile terminals and fixed terminals such as digital TVs, desktop computers, etc. In the following, it is assumed that the terminal is a mobile terminal. However, those skilled in the art will understand that the configuration according to the embodiments of the present invention can also be applied to stationary type terminals, in addition to elements specifically used for mobile purposes.

FIG. 1 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention.

The mobile terminal 100 may include a wireless communication unit 110, an audio/video (A/V) input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, an interface unit 170, a controller 180, and a power supply unit 190. etc. Figure 1 shows a mobile terminal having various components, but it is to be understood that it is not required to implement all of the illustrated components and more or fewer components may be implemented instead, the elements of the mobile terminal will be described in detail below .

The wireless communication unit 110 generally includes one or more components that allow radio communication between the mobile terminal 100 and a wireless communication system or network. For example, the wireless communication unit may include at least one of a broadcast receiving module 111 , a mobile communication module 112 , a wireless Internet module 113 , a short-range communication module 114 and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and/or broadcast related information from an external broadcast management server via a broadcast channel. Broadcast channels may include satellite channels and/or terrestrial channels. The broadcast management server may be a server that generates and transmits a broadcast signal and/or broadcast related information or a server that receives a previously generated broadcast signal and/or broadcast related information and transmits it to a terminal. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and the like. Also, the broadcast signal may further include a broadcast signal combined with a TV or radio broadcast signal. The broadcast related information may also be provided via a mobile communication network, and in this case, the broadcast related information may be received by the mobile communication module 112 . The broadcast signal may exist in various forms, for example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB), Electronic Service Guide (ESG) of Digital Video Broadcast Handheld (DVB-H), etc. . The broadcast receiving module 111 may receive signal broadcasts by using various types of broadcast systems. In particular, the broadcast receiving module 111 can use media such as Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Digital Video Broadcasting-Handheld (DVB-H), Forward Link Media (MediaFLO ), digital broadcasting systems such as Integrated Service for Digital Broadcasting Terrestrial (ISDB-T) and the like receive digital broadcasting. The broadcast receiving module 111 may be configured to be suitable for various broadcast systems providing broadcast signals as well as the above-mentioned digital broadcast systems. Broadcast signals and/or broadcast related information received via the broadcast receiving module 111 may be stored in the memory 160 (or other types of storage media).

The mobile communication module 112 transmits and/or receives radio signals to at least one of a base station (eg, access point, Node B, etc.), an external terminal, and a server. Such radio signals may include voice call signals, video call signals, or various types of data transmitted and/or received according to text and/or multimedia messages.

The wireless Internet module 113 supports wireless Internet access of the mobile terminal. The module can be coupled to the terminal internally or externally. The wireless Internet access technologies involved in this module may include WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless Broadband), Wimax (Global Microwave Interconnection Access), HSDPA (High Speed Downlink Packet Access), etc. .

The short-range communication module 114 is a module for supporting short-range communication. Some examples of short-range communication technologies include Bluetooth™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), Zigbee™, and others.

The location information module 115 is a module for checking or acquiring location information of the mobile terminal. A typical example of the location information module 115 is GPS (Global Positioning System). According to current technology, the GPS module 115 calculates distance information and accurate time information from three or more satellites and applies triangulation to the calculated information, thereby accurately calculating three-dimensional current location information according to longitude, latitude, and altitude. Currently, a method for calculating position and time information uses three satellites and corrects errors of the calculated position and time information by using another one satellite. In addition, the GPS module 115 is able to calculate speed information by continuously calculating current position information in real time.

The A/V input unit 120 is used to receive audio or video signals. The A/V input unit 120 may include a camera 121 that processes image data of still pictures or videos obtained by an image capture device in a video capture mode or image capture mode, and a microphone 122 . The processed image frames may be displayed on the display unit 151 . Image frames processed by the camera 121 may be stored in the memory 160 (or other storage medium) or transmitted via the wireless communication unit 110, and two or more cameras 121 may be provided according to the configuration of the mobile terminal. The microphone 122 may receive sound (audio data) via the microphone 122 in a phone call mode, a recording mode, a voice recognition mode, and the like operating modes, and can process such sound as audio data. The processed audio (voice) data may be converted into a format transmittable to a mobile communication base station via the mobile communication module 112 for output in case of a phone call mode. The microphone 122 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the process of receiving and transmitting audio signals.

The user input unit 130 may generate key input data according to commands input by the user to control various operations of the mobile terminal. The user input unit 130 allows a user to input various types of information, and may include a keypad, a touch pad (eg, a touch sensitive component that detects changes in resistance, pressure, capacitance, etc. due to being touched), and the like. In particular, when a touch pad is superimposed on the display unit 151 in a layer form, a touch screen may be formed.

The sensing unit 140 detects the current state of the mobile terminal 100, (for example, the open or closed state of the mobile terminal 100), the position of the mobile terminal 100, the presence or absence of the user's contact with the mobile terminal 100 (that is, a touch input), the mobile terminal 100, the acceleration or deceleration movement and direction of the mobile terminal 100, etc., and generate commands or signals for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is implemented as a slide type mobile phone, the sensing unit 140 may sense whether the slide type phone is opened or closed. In addition, the sensing unit 140 can detect whether the power supply unit 190 supplies power or whether the interface unit 170 is coupled with an external device.

The interface unit 170 serves as an interface through which at least one external device can be connected with the mobile terminal 100 . For example, an external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. The interface unit 170 may be used to receive input (eg, data information, power, etc.) transfer data between.

The output unit 150 may include a display module 151, an audio output module 152, and the like.

The display unit 151 can display information processed in the mobile terminal 100 . For example, when the mobile terminal 100 is in a phone call mode, the display unit 151 may display a user interface (UI) or a graphical user interface (GUI) related to calls or other communications (eg, text messaging, multimedia file downloading, etc.). When the mobile terminal 100 is in a video call mode or an image capture mode, the display unit 151 may display captured images and/or received images, a UI or GUI showing videos or images and related functions, and the like.

Meanwhile, when the display module 151 and the touch pad are stacked on each other in a layer to form a touch screen, the display module 151 may serve as an input device and an output device. The display module 151 may include at least one of a liquid crystal display (LCD), a thin film transistor LCD (TFT-LCD), an organic light emitting diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like. Some of these displays can be configured to be transparent to allow a user to view from the outside, which can be called a transparent display, and a typical transparent display can be, for example, a TOLED (Transparent Organic Light Emitting Diode) display or the like. Depending on the particular desired implementation, the mobile terminal 100 may include two or more display units (or other display means), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown). . The touch screen can be used to detect touch input pressure as well as touch input position and touch input area.

The audio output module 152 may convert audio data received by the wireless communication unit 110 or stored in the memory 160 when the mobile terminal is in a call signal receiving mode, a call mode, a recording mode, a voice recognition mode, a broadcast receiving mode, etc. audio signal and output as sound. Also, the audio output module 152 may provide audio output related to a specific function performed by the mobile terminal 100 (eg, call signal reception sound, message reception sound, etc.). The audio output module 152 may include a speaker, a buzzer, and the like.

The memory 160 may store software programs and the like for processing and controlling operations executed by the controller 180, or may temporarily store data that has been output or will be output. Also, the memory 160 may store data on various patterns of vibration and audio signals output when a touch is applied to the touch screen.

Memory 160 may include at least one type of storage medium including flash memory, hard disk, multimedia card, card-type memory (eg, SD or DX memory, etc.), random access memory (RAM), static random access memory ( SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, optical disk, etc. Also, the mobile terminal 100 may cooperate with a web storage device performing a storage function of the memory 160 through a network connection.

The controller 180 generally controls the overall operations of the mobile terminal. For example, the controller 180 performs control and processing related to voice calls, data communications, video calls, and the like. In addition, the controller 180 may include a multimedia module 181 for reproducing (or playing back) multimedia data, and the multimedia module 181 may be constructed within the controller 180 or may be constructed separately from the controller 180 . The controller 180 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.

The power supply unit 190 receives external power or internal power and supplies appropriate power required to operate various elements and components under the control of the controller 180 .

Various implementations described herein can be implemented on a computer readable medium using, for example, computer software, hardware, or any combination thereof. For hardware implementation, the embodiments described herein can be implemented by using Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays ( FPGA), processors, controllers, microcontrollers, microprocessors, electronic units designed to perform the functions described herein, in some cases, such implementations may be implemented in the controller 180 implemented in. For software implementation, an embodiment such as a procedure or a function may be implemented with a separate software module that allows at least one function or operation to be performed. The software codes may be implemented by a software application (or program) written in any suitable programming language, which may be stored in memory 160 and executed by controller 180 .

So far, the mobile terminal has been described in terms of its functions. Hereinafter, for the sake of brevity, a slide-type mobile terminal among various types of mobile terminals such as folder-type, bar-type, swing-type, slide-type mobile terminals, etc. will be described as an example. Therefore, the present invention can be applied to any type of mobile terminal and is not limited to a slide type mobile terminal.

The mobile terminal 100 as shown in FIG. 1 may be configured to operate using communication systems such as wired and wireless, which transmit data via frames or packets, and satellite-based communication systems.

A communication system in which a mobile terminal according to the present invention can operate will now be described with reference to FIG. 2 .

Such communication systems may use different air interfaces and/or physical layers. For example, air interfaces used by communication systems include, for example, Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunications System (UMTS) (in particular, Long Term Evolution (LTE) ), Global System for Mobile Communications (GSM), etc. As a non-limiting example, the following description refers to a CDMA communication system, but such teachings are equally applicable to other types of systems.

Referring to FIG. 2 , a CDMA wireless communication system may include a plurality of mobile terminals 100 , a plurality of base stations (BS) 270 , a base station controller (BSC) 275 , and a mobile switching center (MSC) 280 . MSC 280 is configured to interface with Public Switched Telephone Network (PSTN) 290 . MSC 280 is also configured to interface with BSC 275, which may be coupled to base station 270 via a backhaul line. The backhaul may be constructed according to any of several known interfaces including, for example, E1/T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL or xDSL. It will be appreciated that a system as shown in FIG. 2 may include multiple BSCs 275 .

Each BS 270 may serve one or more sectors (or areas), each sector covered by a multi-directional antenna or an antenna pointing in a particular direction radially away from the BS 270 . Alternatively, each sector may be covered by two or more antennas for diversity reception. Each BS 270 may be configured to support multiple frequency allocations, with each frequency allocation having a specific frequency spectrum (eg, 1.25 MHz, 5 MHz, etc.).

The intersection of partition and frequency allocation may be referred to as a CDMA channel. BS 270 may also be referred to as a Base Transceiver Subsystem (BTS) or other equivalent terminology. In such cases, the term "base station" may be used to refer generally to a single BSC 275 and at least one BS 270. A base station may also be referred to as a "cell site." Alternatively, sectors of a particular BS 270 may be referred to as multiple cell sites.

As shown in FIG. 2, a broadcast transmitter (BT) 295 transmits broadcast signals to mobile terminals 100 operating within the system. The broadcast receiving module 111 as shown in FIG. 1 is provided at the mobile terminal 100 to receive broadcast signals transmitted by the BT295. In Fig. 2, several Global Positioning System (GPS) satellites 300 are shown. The satellite 300 helps locate at least one of the plurality of mobile terminals 100 .

In FIG. 2, a plurality of satellites 300 are depicted, but it is understood that any number of satellites may be utilized to obtain useful positioning information. The GPS module 115 as shown in FIG. 1 is generally configured to cooperate with satellites 300 to obtain desired positioning information. Instead of or in addition to GPS tracking techniques, other techniques that can track the location of the mobile terminal may be used. Additionally, at least one GPS satellite 300 may optionally or additionally handle satellite DMB transmissions.

As a typical operation of a wireless communication system, the BS 270 receives reverse link signals from various mobile terminals 100 . Mobile terminal 100 typically engages in calls, messaging, and other types of communications. Each reverse link signal received by a particular base station 270 is processed within a particular BS 270 . The obtained data is forwarded to the relevant BSC275. The BSC provides call resource allocation and mobility management functions including coordination of soft handover procedures between BS270. BSC 275 also routes received data to MSC 280 , which provides additional routing services for interfacing with PSTN 290 . Similarly, PSTN 290 interfaces with MSC 280 , MSC 280 interfaces with BSC 275 , and BSC 275 controls BS 270 to send forward link signals to mobile terminal 100 accordingly.

Based on the above mobile terminal hardware structure and communication system, various embodiments of the present invention are proposed.

An embodiment of the present invention provides a camera module. As shown in FIG. 3 , the camera module includes: a circuit connection substrate 1 and an image sensor 2 arranged on the circuit connection substrate. Layer 3, where:

The color filter layer 3 is disposed on the image sensor 2 and away from the surface of the circuit connection substrate 1 .

Each pixel in the color filter layer obtains its own full-color photosensitive information according to the color it receives.

Specifically, the color filter layer in the present invention can be realized by using electrochromic materials, or it can also adopt a structure similar to that used in liquid crystal panels. The color filter layer can be realized by using a liquid crystal layer, a color filter array and a polarizer combination obtained. When the color filter layer is realized by using electrochromic materials, one, two or three electrochromic film layers can be provided correspondingly according to the different electrochromic materials used to obtain the three primary colors of red, green and blue.

Among them, electrochromism refers to the phenomenon that the optical properties of materials (reflectivity, transmittance, absorptivity, etc.) undergo stable and reversible color changes under the action of an applied electric field. Appears as a reversible change in color and transparency. Materials with electrochromic properties are called electrochromic materials, and devices made of electrochromic materials are called electrochromic devices. As early as the 1930s, there was a preliminary report on electrochromism. In the 1960s, when Pkat was studying organic dyes, he discovered and studied the phenomenon of electrochromism. In 1969, Deb discovered that molybdenum trioxide MoO3 and tungsten oxide WO3 had an electrochromic effect when a voltage was applied. On this basis, Deb conducted in-depth research and developed the first thin film electrochromic device. Electrochromic materials are receiving more and more attention because of their huge potential application value in smart windows, automotive anti-glare rearview mirrors, and electrochromic displays.

At present, electrochromic materials mainly include two types: inorganic electrochromic materials and organic electrochromic materials. Many transition metal oxides have electrochromic effects, and it is generally believed that inorganic electrochromic materials have electrochromic effects due to the redox reaction of double injection and double extraction of electrons and ions. According to the coloring of inorganic electrochromic materials in the oxidation state or reduction state, it can be divided into: reduction state coloring electrochromic materials, such as oxides of tungsten W, molybdenum Mo, vanadium V, niobium Nb and titanium Ti; oxidation state coloring electrochromic materials Color-changing materials, such as oxides of rhodium Lr, rhodium Rh, nickel Ni and cobalt Co, etc. Oxides of materials such as vanadium V, cobalt Co, and rhodium Rh exhibit different colors in both the oxidized and reduced states. Prussian blue is also an electrochromic material with multiple color-changing properties, which can change between dark blue, transparent and colorless (when reduced), and light green (when oxidized). Organic electrochromic materials include redox compounds such as viologen, conductive polymers such as polyaniline, polythiophene, and metal organic compounds such as phthalocyanines. Due to the advantages of good chemical stability and simple preparation process, inorganic electrochromic materials are the focus of people's research. As the earliest electrochromic material discovered, WO3 is the most detailed one due to its superior performance and low price. An electrochromic material.

Among them, the combination of the liquid crystal layer, the color filter array and the polarizer is used as the color filter layer to realize that each pixel can receive all the colors in the three primary colors of red, green and blue. Because the liquid crystal molecules of the liquid crystal layer are deflected in different directions and angles when the applied voltages are different; in this way, the corresponding color filter layer can be applied according to the arrangement direction of the liquid crystal molecules and the structure of the pixels in the color filter array. The voltage signal makes the liquid crystal molecules deflect, so that the light can correspond to the pixels with the same color in the color filter array after passing through the lens group of the camera module, and then through the deflection of the polarizer, the light can reach the image sensor; In this way, after each exposure, each pixel can produce a basic tone, and after three exposures, three basic tones of red, green, and blue can be obtained.

In the color filter array in the camera module in the prior art solution, after each acquired image passes through the color filter array, each pixel in the image can only receive one of the three primary colors of red, green, and blue. The pixel structure is shown in FIG. 4 . Therefore, in order to obtain the full-color photosensitive information of a pixel, it is necessary to combine the pixel information adjacent to the pixel with the colors of other three primary colors with the pixel information. For example: as shown in Figure 3, to obtain the full-color photosensitive information of the pixel R in the third row and the second column, it is necessary to combine the pixel G of the third row and the first column adjacent to the pixel R, the third row and the third Pixel G in the first column, pixel B in the second row and first column, pixel G in the second row and second column, pixel B in the second row and third column, pixel B in the fourth row and first column, pixel B in the fourth row and second The pixel G in the first row and the pixel B in the fourth row and third column perform an interpolation compensation operation, so that the panchromatic photosensitive information of the pixel R in the third row and second column can finally be obtained. Similarly, to obtain the full-color photosensitive information of the pixel B in the second row and the third column, it is necessary to combine the pixel G in the second row and the second column, the pixel G in the second row and the fourth column, and the pixel G in the first row and the second column , pixel G in the first row and third column, pixel R in the first row and fourth column, pixel R in the third row and second column, pixel G in the third row and third column, and pixel R in the third row and fourth column The interpolation compensation operation is performed, so that finally the panchromatic photosensitive information of the pixel B in the second row and the third column can be obtained. Similarly, to obtain the full-color photosensitive information of the pixel G in the third row and the third column, it is necessary to combine the pixel R in the third row and the second column, the pixel R in the third row and the fourth column, and the pixel G in the second row and the second column , pixel B in the second row and third column, pixel G in the second row and fourth column, pixel G in the fourth row and second column, pixel B in the fourth row and third column, and pixel G in the fourth row and fourth column An interpolation compensation operation is performed, so that finally the panchromatic photosensitive information of the pixel G in the third row and third column can be obtained. Because there is a difference in displacement between adjacent pixels, errors will occur when obtaining the full-color photosensitive information of a pixel, making the fineness performance of the obtained image information poor. However, with the camera module provided by the embodiment of the present invention, each pixel can obtain each basic hue in the three primary colors of red, green, and blue, and a picture with a basic hue can be obtained without one exposure. Afterwards, each pixel can be obtained with three basic tones.

The camera module provided by the embodiment of the present invention includes a circuit connection substrate, a color filter layer, and an image sensor disposed on the circuit connection substrate. Each pixel in the color filter layer obtains the color of each pixel according to the color it receives. Respective full-color photosensitive information, therefore, each pixel of the color filter layer in the camera module can receive all the colors in the three primary colors of red, green and blue after multiple exposures, and each pixel can use each pixel The color received by itself obtains the full-color photosensitive information of each pixel; in this way, it solves the problem of obtaining the full-color photosensitive information of a pixel in the color filter array of the existing camera module, which needs to combine the images of multiple adjacent pixels with different colors The problem of information synthesis meets the user's higher precision requirements and improves the user's experience effect.

An embodiment of the present invention provides a camera module. As shown in FIG. 5 , the camera module includes: a circuit connection substrate 1 and an image sensor 2 arranged on the circuit connection substrate. Layer 3, where:

The color filter layer includes: an electrochromic film layer 4 .

The electrochromic film layer 4 is disposed on the surface of the image sensor 2 away from the circuit connection substrate 1 .

Each pixel in the color filter layer obtains its own full-color photosensitive information according to the color it receives.

The materials of the electrochromic film layer include: organic electrochromic materials and inorganic electrochromic materials; organic electrochromic materials can include polythiophenes and their derivatives, viologens, tetrathiafulvalenes, metal phthalocyanines Inorganic electrochromic materials may include oxides of tungsten, molybdenum, vanadium, niobium, titanium, rhodium, rhodium, nickel, and cobalt. Organic electrochromic materials can realize multi-color discoloration, excellent optical properties, and good cycle reversibility. Inorganic electrochromic materials have stable chemical properties, simple preparation process, strong radiation resistance, and easy full curing. By applying different voltages to the electrochromic film layer, each pixel can obtain three colors of red, green and blue after three exposures, thus obtaining full-color data of the same pixel point, and achieving the effect of full-color photosensitive. Taking the material of the electrochromic film layer as an example to illustrate: when the applied voltage signal is 1.0V, the electrochromic film layer appears red; when the applied voltage signal is 1.8V, the electrochromic film layer appears red. The film layer appears green; when the applied voltage signal is 1.2V, the electrochromic film layer appears blue. It should be noted that, in all the embodiments of the present invention, the application of the voltage signal to the electrochromic film layer occurs synchronously with the voltage applied to the shutter through the image sensor.

Among them, as shown in Figure 6, it is the control circuit for the color filter layer, that is to say, while the voltage signal is provided to the shutter through the image sensor, a corresponding voltage signal can be applied to both ends of the control circuit of the color filter layer , so as to ensure that after the camera is exposed once, due to the voltage signal applied to the electrochromic film layer, the picture data showing one of the three colors of red, green and blue is collected at this time, and then the electrochromic film is given The corresponding different voltage signals are applied to the layer, and after two exposures, image data with three colors of red, green, and blue are collected, and then the image sensor processes the obtained three-color image data to obtain the red image of the same pixel. , green and blue primary color data.

The thickness of the electrochromic film layer can be 200nm-2500nm, and the thickness of the electrochromic film layer can be preferably 300nm.

Specifically, setting the thickness of the electrochromic film layer to 300nm can ensure the color filtering effect of the first electrochromic film layer, and at the same time, prevent the formed camera module from being too thick, which will affect the aesthetics, and meet the trend of thinning.

The electrochromic film layer can be vacuum evaporation method, magnetron sputtering method, chemical vapor deposition method, pulse laser deposition method, electrodeposition method, sol-gel method, spray pyrolysis method, anodic oxidation method, hydrothermal method and solvothermal method to prepare.

It should be noted that, for the description about the electrochromic material in the embodiment of the present invention, reference may be made to the detailed description in other embodiments of the present invention, which will not be repeated here.

The camera module provided by the embodiment of the present invention includes a circuit connection substrate, a color filter layer, and an image sensor disposed on the circuit connection substrate. Each pixel in the color filter layer obtains the color of each pixel according to the color it receives. Respective full-color photosensitive information, therefore, each pixel of the color filter layer in the camera module can receive all the colors in the three primary colors of red, green and blue after multiple exposures, and each pixel can use each pixel The color received by itself obtains the full-color photosensitive information of each pixel; in this way, it solves the problem of obtaining the full-color photosensitive information of a pixel in the color filter array of the existing camera module, which needs to combine the images of multiple adjacent pixels with different colors The problem of information synthesis meets the user's higher precision requirements and improves the user's experience effect.

An embodiment of the present invention provides a camera module. Referring to FIG. 7, the camera module includes: a circuit connection substrate 1 and an image sensor 2 arranged on the circuit connection substrate. Layer 3, the color filter layer includes an electrochromic film layer 4,

The electrochromic film layer 4 includes: a first electrochromic film layer 41, wherein:

The first electrochromic film layer 41 is disposed on the image sensor 2 and away from the surface of the circuit connection substrate 1 .

Each pixel in the color filter layer obtains its own full-color photosensitive information according to the color it receives.

The material of the first electrochromic film layer is an organic electrochromic material.

Specifically, because the organic electrochromic material can be applied to different voltage signal values in the control circuit of the color filter layer, so that each pixel in the color filter layer only receives red and green colors during each exposure. , one of the three colors of blue, so after three exposures, each pixel can receive red, green, and blue data.

The thickness of the first electrochromic film layer may be 200nm-2500nm, and the thickness of the preferred electrochromic film layer may be 300nm.

Specifically, setting the thickness of the first electrochromic film layer to 300nm can ensure the color filtering effect of the first electrochromic film layer, and at the same time, avoid the formed camera module being too thick, which affects the aesthetics, and meets the requirements of thinning and thinning. trend.

It should be noted that, for the description about the electrochromic material in the embodiment of the present invention, reference may be made to the detailed description in other embodiments of the present invention, which will not be repeated here.

The camera module provided by the embodiment of the present invention includes a circuit connection substrate, a color filter layer, and an image sensor disposed on the circuit connection substrate. Each pixel in the color filter layer obtains the color of each pixel according to the color it receives. Respective full-color photosensitive information, therefore, each pixel of the color filter layer in the camera module can receive all the colors in the three primary colors of red, green and blue after multiple exposures, and each pixel can use each pixel The color received by itself obtains the full-color photosensitive information of each pixel; in this way, it solves the problem of obtaining the full-color photosensitive information of a pixel in the color filter array of the existing camera module, which needs to combine the images of multiple adjacent pixels with different colors The problem of information synthesis meets the user's higher precision requirements and improves the user's experience effect.

An embodiment of the present invention provides a camera module. Referring to FIG. 8, the camera module includes: a circuit connection substrate 1 and an image sensor 2 arranged on the circuit connection substrate. Layer 3, the color filter layer 3 includes an electrochromic film layer 4,

The electrochromic film layer 4 includes: a first electrochromic film layer 41 and a second electrochromic film layer 42, wherein:

The first electrochromic film layer 41 is disposed on the image sensor 2 and away from the surface of the circuit connection substrate 1 .

The second electrochromic film layer 42 is disposed on the surface of the first electrochromic film layer 41 away from the image sensor 2 .

Each pixel in the color filter layer obtains its own full-color photosensitive information according to the color it receives.

The materials of the first electrochromic film layer and the second electrochromic film layer are both inorganic electrochromic materials.

As shown in Figure 8, the electrochromic film layer includes a first electrochromic film layer and a second electrochromic film layer, and the materials of the first electrochromic film layer and the second electrochromic film layer can be inorganic electrochromic film layers. The coloring in the oxidized state and the reduced state of the chromogenic material is different, and the color in the oxidized state and the reduced state is one of red, green and blue. At this time, because any one of the first electrochromic film layer and the second electrochromic film layer can realize two colors when different voltage signals are applied, so when another voltage signal is applied , can make another electrochromic film layer present a color different from the color already presented. For example, the materials of the first electrochromic film layer and the second electrochromic film layer may include: cobalt oxide and rhodium oxide. The material of the first electrochromic film layer and the material of the second electrochromic layer cannot be the same material at the same time, but they can be interchanged.

Further, referring to FIG. 9, the electrochromic film layer 4 also includes a third electrochromic film layer 43, wherein:

The third electrochromic film layer 43 is disposed on the surface of the second electrochromic film layer 42 away from the first electrochromic film layer 41 .

The materials of the third electrochromic film layer are all inorganic electrochromic materials.

Specifically, as shown in Figure 9, when the electrochromic film layer includes the first electrochromic film layer, the second electrochromic film layer and the third electrochromic film layer, the first electrochromic film layer, the second electrochromic film layer The material of the second electrochromic film layer and the third electrochromic film layer is a material that can exhibit one of red, green and blue colors in an oxidized state and a reduced state among inorganic electrochromic materials. In this way, by applying three different voltage signals to the control voltage for controlling the color filter layer, each pixel in the color filter layer can receive three colors of red, green, and blue after being exposed three times to obtain red, green , blue data.

The thicknesses of the first electrochromic film layer, the second electrochromic film layer and the third electrochromic film layer may all be 200nm˜2500nm.

Preferably, the thicknesses of the first electrochromic film layer, the second electrochromic film layer and the third electrochromic film layer can all be 300 nm.

Specifically, setting the thickness of the first electrochromic film layer to 300nm can ensure the color filtering effect of the first electrochromic film layer, and at the same time, avoid the formed camera module being too thick, which affects the aesthetics, and meets the requirements of thinning and thinning. trend.

It should be noted that, for the description about the electrochromic material in the embodiment of the present invention, reference may be made to the detailed description in other embodiments of the present invention, which will not be repeated here.

The camera module provided by the embodiment of the present invention includes a circuit connection substrate, a color filter layer, and an image sensor disposed on the circuit connection substrate. Each pixel in the color filter layer obtains the color of each pixel according to the color it receives. Respective full-color photosensitive information, therefore, each pixel of the color filter layer in the camera module can receive all the colors in the three primary colors of red, green and blue after multiple exposures, and each pixel can use each pixel The color received by itself obtains the full-color photosensitive information of each pixel; in this way, it solves the problem of obtaining the full-color photosensitive information of a pixel in the color filter array of the existing camera module, which needs to combine the images of multiple adjacent pixels with different colors The problem of information synthesis meets the user's higher precision requirements and improves the user's experience effect.

An embodiment of the present invention provides a camera module. Referring to FIG. 10, the camera module includes: a circuit connection substrate 1 and an image sensor 2 arranged on the circuit connection substrate. Layer 3, the color filter layer 3 includes: a liquid crystal layer 31, a color filter array 32 and a polarizer 33, wherein:

The polarizer 33 is disposed on the surface of the image sensor 2 away from the circuit connection substrate 1 .

The color filter array 32 is disposed on the surface of the polarizer 33 on a side away from the image sensor 2 .

The liquid crystal layer 31 is disposed on the surface of the color filter array 32 on a side away from the polarizer 33 .

Each pixel in the color filter layer obtains its own full-color photosensitive information according to the color it receives.

Specifically, when the voltages applied to the liquid crystal molecules of the liquid crystal layer are different, the deflection directions and angles of the liquid crystal molecules are different; in this way, different voltage signals can be applied to the control circuit of the color filter layer, so that the liquid crystal molecules are deflected. Specifically, according to the arrangement direction of the liquid crystal molecules and the arrangement structure of the pixels in the color filter array, a corresponding voltage signal can be applied to the control circuit of the color filter layer, so that the light can pass through the lens group of the camera module and pass through the liquid crystal layer. Corresponding to the pixels with the same color in the color filter array, and then through the deflection of the polarizer, the light can reach the image sensor; in this way, after each exposure, each pixel can produce a basic tone, after three exposures After that, you can get the red, green, and blue color data.

The camera module provided by the embodiment of the present invention includes a circuit connection substrate, a color filter layer, and an image sensor disposed on the circuit connection substrate. Each pixel in the color filter layer obtains the color of each pixel according to the color it receives. Respective full-color photosensitive information, therefore, each pixel of the color filter layer in the camera module can receive all the colors in the three primary colors of red, green and blue after multiple exposures, and each pixel can use each pixel The color received by itself obtains the full-color photosensitive information of each pixel; in this way, it solves the problem of obtaining the full-color photosensitive information of a pixel in the color filter array of the existing camera module, which requires multiple adjacent pixels with different colors The problem of information synthesis meets the user's higher precision requirements and improves the user's experience effect.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to make a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in various embodiments of the present invention.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (10)

1. A camera module, characterized in that, the camera module includes: a circuit connection substrate and an image sensor arranged on the circuit connection substrate, and the camera module also includes: a color filter layer; wherein, The color filter layer is disposed on the image sensor, and is away from the surface of the circuit connection substrate side; Each pixel in the color filter layer obtains its own full-color photosensitive information according to the color it receives. 2. The camera module according to claim 1, wherein the color filter layer comprises: an electrochromic film layer. 3. The camera module according to claim 2, wherein the electrochromic film layer comprises: a first electrochromic film layer arranged on the image sensor and away from the circuit connection substrate surface on one side. 4. The camera module according to claim 3, wherein the material of the first electrochromic film layer is an organic electrochromic material. 5. The camera module according to claim 3, wherein the electrochromic film layer further comprises: a second electrochromic film layer disposed on the first electrochromic film layer away from the image The surface on the side of the sensor. 6 . The camera module according to claim 5 , wherein the materials of the first electrochromic film layer and the second electrochromic film layer are both inorganic electrochromic materials. 7. The camera module according to claim 5, characterized in that, the camera module further comprises a third electrochromic film layer arranged on the second electrochromic film layer away from the first electrochromic film layer. The surface of one side of the color-changing film layer. 8. The camera module according to claim 7, wherein the materials of the first electrochromic film layer, the second electrochromic film layer and the third electrochromic film layer are all Inorganic electrochromic materials. 9. The camera module according to claim 7, characterized in that, The thicknesses of the first electrochromic film layer, the second electrochromic film layer and the third electrochromic film layer are 200nm˜2500nm. 10. The camera module according to any one of claims 1 to 9, wherein the color filter layer comprises: a liquid crystal layer, a color filter array and a polarizer; wherein, The polarizer is arranged on the surface of the image sensor on a side away from the circuit connection substrate; The color filter array is arranged on the surface of the polarizer on a side away from the image sensor; The liquid crystal layer is disposed on the surface of the color filter array on a side away from the polarizer.