WO2017084547A1

WO2017084547A1 - Camera module

Info

Publication number: WO2017084547A1
Application number: PCT/CN2016/105793
Authority: WO
Inventors: 张圣杰
Original assignee: 努比亚技术有限公司
Priority date: 2015-11-18
Filing date: 2016-11-14
Publication date: 2017-05-26
Also published as: CN105338229A

Abstract

Disclosed in the embodiments of the present invention is a camera module, said camera module comprising: a wiring connection substrate and an image sensor arranged on said wiring connection substrate, the camera module also comprising: a colour filter layer, the colour filter layer being arranged on the image sensor on the surface of the side furthest from the wiring connection substrate; each pixel in the colour filter layer obtains full-colour photosensitive information of each pixel on the basis of the colour received by each pixel itself.

Description

Camera module

Technical field

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

Background technique

In the existing camera module, a color filter array (CFA) is usually installed above the image sensor of the camera module to implement 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 full-color photosensitive information of one pixel needs to have three colors of red, green, and blue; therefore, multiple adjacent The information of the pixels of different colors is synthesized, and then the color interpolation compensation is performed by the demosaicing algorithm to obtain the full-color photosensitive information of one pixel.

Because of the difference in displacement between adjacent pixels, errors can occur with the same color data. Therefore, the higher demand for fineness performance of the photographers cannot be satisfied, and the user's experience is poor.

Summary of the invention

In view of this, embodiments of the present invention are directed to providing a camera module that solves the problem of obtaining full-color light-sensing information of one pixel in a color filter array of a conventional camera module, and needs information of multiple adjacent pixels having different colors. The synthesized problem satisfies the user's higher fineness requirements and improves the user's experience.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A camera module, the camera module includes: a line connection substrate and an image sensor disposed on the line connection substrate, the camera module further comprising: a color filter layer;

The color filter layer is disposed on the image sensor and away from a surface of one side of the line connection substrate;

Each pixel in the color filter layer obtains each of the pixels according to the color received by itself Full color sensitization information.

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

Optionally, the electrochromic film layer comprises: a first electrochromic film layer disposed on the image sensor and away from a surface of one side of the line connecting substrate.

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

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

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

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

Optionally, the 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 first electrochromic film layer, the second electrochromic film layer and the third electrochromic film layer have a thickness of 200 nm to 2500 nm.

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

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

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

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

The camera module provided by the embodiment of the invention includes a line connection substrate, a color filter layer and an image sensor disposed on the line connection substrate, each pixel in the color filter layer is obtained according to the color received by itself. The respective full-color photosensitive information, therefore, each pixel of the color filter layer in the camera module can receive all the colors of the three primary colors of red, green and blue after multiple exposures, and each pixel can adopt each pixel The color received by itself obtains the full-color light-sensing information of each pixel; thus, the full-color light-sensing information of one pixel is obtained in the color filter array of the existing camera module, and multiple adjacent pixels having different colors are needed. The problem of synthesizing information meets the needs of users The fineness requirements of the user have improved the user experience.

DRAWINGS

1 is a schematic structural diagram of hardware of a mobile terminal according to an embodiment of the present invention;

2 is a schematic structural diagram of a communication system that can be operated by a mobile terminal according to an embodiment of the present invention;

3 is a schematic cross-sectional structural view of a camera module according to an embodiment of the present invention;

4 is a schematic diagram of a pixel arrangement structure according to an embodiment of the present invention;

FIG. 5 is a cross-sectional structural diagram of another camera module according to an embodiment of the present invention; FIG.

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

FIG. 7 is a cross-sectional structural diagram of still another camera module according to an embodiment of the present invention; FIG.

FIG. 8 is a cross-sectional structural diagram of a camera module according to another embodiment of the present invention; FIG.

FIG. 9 is a cross-sectional structural diagram of another camera module according to another embodiment of the present invention; FIG.

FIG. 10 is a cross-sectional structural diagram of still another camera module according to another embodiment of the present invention.

detailed description

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

A mobile terminal embodying various embodiments of the present invention will now be described with reference to FIG. In the following description, the use of suffixes such as "module", "component" or "unit" for indicating an element is merely an explanation for facilitating the present invention, and does not have a specific meaning per se. Therefore, "module" and "component" can be used in combination.

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

FIG. 1 is a schematic diagram showing the hardware structure of a mobile terminal embodying 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. and many more. Figure 1 shows a mobile terminal having various components, but it should be understood that not all illustrated components are required to be implemented, and more or fewer components may be implemented instead, and the components of the mobile terminal will be described in detail below. .

Wireless communication unit 110 typically includes one or more components that permit radio communication between 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 a broadcast signal and/or broadcast associated information from an external broadcast management server via a broadcast channel. The broadcast channel can include a satellite channel and/or a terrestrial channel. The broadcast management server may be a server that generates and transmits a broadcast signal and/or broadcast associated information or a server that receives a previously generated broadcast signal and/or broadcast associated information and transmits it to the terminal. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and the like. Moreover, the broadcast signal may further include a broadcast signal combined with a TV or radio broadcast signal. The broadcast associated information may also be provided via a mobile communication network, and in this case, the broadcast associated 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 Digital Multimedia Broadcasting (DMB) Electronic Program Guide (EPG), Digital Video Broadcasting Handheld (DVB-H) Electronic Service Guide (ESG), and the like. . The broadcast receiving module 111 can receive a signal broadcast by using various types of broadcast systems. In particular, the broadcast receiving module 111 can use forward link media (MediaFLO) by using, for example, multimedia broadcast-terrestrial (DMB-T), digital multimedia broadcast-satellite (DMB-S), digital video broadcast-handheld (DVB-H) The digital broadcasting system of the @) data broadcasting system, the terrestrial digital broadcasting integrated service (ISDB-T), and the like receives digital broadcasting. The broadcast receiving module 111 can be constructed as various broadcast systems suitable for providing broadcast signals as well as the above-described digital broadcast system. The broadcast signal and/or broadcast associated information received via the broadcast receiving module 111 may be stored in the memory 160 (or other class) Type of storage medium).

The mobile communication module 112 transmits the radio signals to and/or receives radio signals from at least one of a base station (e.g., an access point, a 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 in accordance with text and/or multimedia messages.

The wireless internet module 113 supports wireless internet access of the mobile terminal. The module can be internally or externally coupled to the terminal. The wireless Internet access technologies involved in the module may include WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless Broadband), Wimax (Worldwide Interoperability for Microwave 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 BluetoothTM, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wide Band (UWB), ZigbeeTM, and the like.

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 a GPS (Global Positioning System). According to the current technology, the position information module 115 as a GPS calculates distance information and accurate time information from three or more satellites and applies triangulation to the calculated information to accurately calculate the three-dimensional current based on longitude, latitude, and altitude. location information. Currently, the method for calculating position and time information uses three satellites and corrects the calculated position and time information errors by using another satellite. Further, the position information module 115 as a GPS can calculate the speed information by continuously calculating the current position information in real time.

The A/V input unit 120 is for receiving an audio or video signal. The A/V input unit 120 may include a camera 121 and a microphone 122 that processes image data of still pictures or video obtained by the image capturing device in a video capturing mode or an image capturing mode. The processed image frame can be displayed on the display module 151. The 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 can receive sound (audio data) via the microphone 122 in an operation mode of a telephone call mode, a recording mode, a voice recognition mode, and the like, and can Such sounds are processed into audio data. The processed audio (voice) data can be converted to a format output that can be transmitted to the mobile communication base station via the mobile communication module 112 in the case of a telephone call mode. The microphone 122 can implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated during the process of receiving and transmitting audio signals.

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

The sensing unit 140 detects the current state of the mobile terminal 100 (eg, the open or closed state of the mobile terminal 100), the location of the mobile terminal 100, the presence or absence of contact (ie, touch input) by the user with the mobile terminal 100, and the mobile terminal. The orientation of 100, the acceleration or deceleration movement and direction of the mobile terminal 100, and the like, and generates a command or signal 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 can sense whether the slide type phone is turned on or off. In addition, the sensing unit 140 can detect whether the power supply unit 190 provides power or whether the interface unit 170 is coupled to an external device.

The interface unit 170 serves as an interface through which at least one external device can connect with the mobile terminal 100. For example, the 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 having an identification module, and an audio input/output. (I/O) port, video I/O port, headphone port, and more. The interface unit 170 can be configured to receive input from an external device (eg, data information, power, etc.) and transmit the received input to one or more components within the mobile terminal 100 or can be used at the mobile terminal and external device Transfer data between.

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

The display module 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 module 151 can display a call or other communication (eg, Text messaging, multimedia file downloads, etc.) related user interface (UI) or graphical user interface (GUI). When the mobile terminal 100 is in a video call mode or an image capture mode, the display module 151 may display a captured image and/or a received image, a UI or GUI showing a video or image and related functions, and the like.

Meanwhile, when the display module 151 and the touch panel are superposed on each other in the form of layers to form a touch screen, the display module 151 can function 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 may be configured to be transparent to allow a user to view from the outside, which may be referred to as a transparent display, and a typical transparent display may be, for example, a TOLED (Transparent Organic Light Emitting Diode) display or the like. According to a particular desired embodiment, the mobile terminal 100 may include two or more display units (or other display devices), 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, and the like. The audio signal is output as sound. Moreover, the audio output module 152 can provide audio output (eg, call signal reception sound, message reception sound, etc.) associated with a particular function performed by the mobile terminal 100. The audio output module 152 can include a speaker, a buzzer, and the like.

The memory 160 may store a software program or the like that performs processing and control operations performed by the controller 180, or may temporarily store data that has been output or is to be output. Moreover, the memory 160 can store data regarding vibrations and audio signals of various manners that are output when a touch is applied to the touch screen.

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

The controller 180 typically controls the overall operation of the mobile terminal. For example, the controller 180 performs the control and processing associated with 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, which may be constructed within the controller 180 or may be configured to be separate 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 under the control of the controller 180 and provides appropriate power required to operate the various components and components.

The various embodiments described herein can be implemented in a computer readable medium using, for example, computer software, hardware, or any combination thereof. For hardware implementations, the embodiments described herein may be through the use of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays ( An FPGA, a processor, a controller, a microcontroller, a microprocessor, at least one of the electronic units designed to perform the functions described herein, in some cases, such an embodiment may be at the controller 180 Implemented in the middle. For software implementations, implementations such as procedures or functions may be implemented with separate software modules that permit the execution of at least one function or operation. The software code can be implemented by a software application (or program) written in any suitable programming language, which can be stored in memory 160 and executed by controller 180.

So far, the mobile terminal has been described in terms of its function. Hereinafter, for the sake of brevity, a slide type mobile terminal among various types of mobile terminals such as a folding type, a bar type, a swing type, a slide type mobile terminal, and the like 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 a communication system such as a wired and wireless communication system and a satellite-based communication system that transmits data via frames or packets.

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

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 relates 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 can 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. The MSC 280 is configured to interface with a public switched telephone network (PSTN) 290. The MSC 280 is also configured to interface with a BSC 275 that can be coupled to the base station 270 via a backhaul line. The backhaul line can be constructed in accordance with any of a number of known interfaces including, for example, E1/T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL, or xDSL. It will be appreciated that the system as shown in FIG. 2 can include multiple BSCs 275.

Each BS 270 can serve one or more partitions (or regions), each of which is covered by a multi-directional antenna or an antenna directed to a particular direction radially away from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS 270 can be configured to support multiple frequency allocations, and each frequency allocation has a particular frequency spectrum (eg, 1.25 MHz, 5 MHz, etc.).

The intersection of partitioning and frequency allocation can 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 a case, the term "base station" can be used to generally refer to a single BSC 275 and at least one BS 270. A base station can also be referred to as a "cell station." Alternatively, each partition of a particular BS 270 may be referred to as a plurality of cellular stations.

As shown in FIG. 2, a broadcast transmitter (BT) 295 transmits a broadcast signal to the mobile terminal 100 operating within the system. A broadcast receiving module 111 as shown in FIG. 1 is provided at the mobile terminal 100 to receive a broadcast signal transmitted by the BT 295. In Figure 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 Figure 2, a plurality of satellites 300 are depicted, but it is understood that any number of satellites can be utilized. Stars get useful positioning information. The position information module 115 as a GPS as shown in FIG. 1 is generally configured to cooperate with the satellite 300 to obtain desired positioning information. Instead of GPS tracking technology or in addition to GPS tracking technology, other techniques that can track the location of the mobile terminal can be used. Additionally, at least one GPS satellite 300 can selectively or additionally process satellite DMB transmissions.

As a typical operation of a wireless communication system, BS 270 receives reverse link signals from various mobile terminals 100. Mobile terminal 100 typically participates 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 BSC 275. The BSC provides call resource allocation and coordinated mobility management functions including a soft handoff procedure between the BSs 270. The BSC 275 also routes the received data to the MSC 280, which provides additional routing services for interfacing with the PSTN 290. Similarly, PSTN 290 interfaces with MSC 280, MSC 280 interfaces with BSC 275, and BSC 275 controls BS 270 accordingly to transmit forward link signals to mobile terminal 100.

Various embodiments of the present invention are proposed based on the above-described mobile terminal hardware structure and communication system.

Embodiment 1

An embodiment of the present invention provides a camera module. Referring to FIG. 3, the camera module includes a line connection substrate 1 and an image sensor 2 disposed on the line connection substrate. The camera module further includes: color filter. Layer 3, where:

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

Each pixel in the color filter layer obtains the full-color sensitivity information of each pixel according to the color received by itself.

Specifically, the color filter layer in the present invention may be implemented by using an electrochromic material, or may be a structure similar to the application of the liquid crystal panel. The color filter layer may be a liquid crystal layer, a color filter array, and a polarizer. Combined.

In the following, the scene in which the color filter layer is realized by using an electrochromic material is first described, and one or two or three layers of electrical changes may be correspondingly arranged according to different electrochromic materials used. The color film layer is used to obtain three primary colors of red, green and blue.

Among them, electrochromism refers to a phenomenon in which the optical properties (reflectance, transmittance, absorptivity, etc.) of a material undergo a stable and reversible color change under the action of an applied electric field.

Appears in appearance as a reversible change in color and transparency. A material having electrochromic properties is called an electrochromic material, and a device made of an electrochromic material is called an electrochromic device. As early as the 1930s, there were preliminary reports on electrochromism. In the 1960s, Pkat discovered electrochromism and studied it when studying organic dyes. In 1969, Deb found that molybdenum trioxide MoO3 and tungsten oxide WO3 had electrochromic effects under the application of voltage. 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 the direction of smart windows, automotive anti-glare rearview mirrors, and electrochromic displays.

Electrochromic materials mainly include two types: inorganic electrochromic materials and organic electrochromic materials. Many transition metal oxides have an electrochromic effect, and it is believed that the inorganic electrochromic material has an electrochromic effect due to the redox reaction of double injection and double extraction of electrons and ions. According to the inorganic electrochromic material, the coloring in the oxidized or reduced state can be divided into: reduced state colored electrochromic materials, such as tungsten W, molybdenum Mo, vanadium V, niobium Nb and titanium Ti oxide; A color changing material such as an oxide of lanthanum Lr, yt Rh, nickel Ni, and cobalt Co. Some materials such as vanadium V, cobalt Co, and rhodium Rh oxides exhibit different colors in both the oxidized and reduced states. Prussian Blue is also an electrochromic material with a variety of color-changing properties that can be converted between dark blue, transparent, colorless (reduced), light green (oxidized) and other colors. The organic electrochromic material includes a redox type compound such as viologen, a conductive polymer such as polyaniline, polythiophene, and a metal organic compound such as phthalocyanine. Non-electromechanical color-changing materials are the focus of research because of their good chemical stability and simple preparation process. WO3 is the first electrochromic material discovered. Due to its superior performance and low price, it is the most detailed study. An electrochromic material.

In addition, a combination of a liquid crystal layer, a color filter array, and a polarizer may be used as the color filter layer. Also, the color green layer can realize that each pixel can receive all of the three primary colors of red, green, and blue. Because the liquid crystal molecules of the liquid crystal layer are different when the applied voltage is different, the liquid crystal molecules are biased. The direction and angle of rotation are different; such that the liquid crystal layer is based on applying a corresponding voltage signal to the color filter layer, so that liquid crystal molecules are deflected, so that the light passes through the lens group of the camera module and can correspond to the color filter array. The pixels having the same color can apply corresponding voltage signals to the color filter layer according to the arrangement direction of the liquid crystal molecules and the structure of the pixels in the color filter array, so that the liquid crystal molecules are deflected, so that the light passes through the camera module. The lens group may then correspond to pixels of the same color in the color filter array. Through the deflection of the polarizer, the light can be made to reach the image sensor; thus, after each exposure, each pixel can produce a basic color tone, and after three exposures, three basic colors of red, green, and blue can be obtained.

In the color filter array in the camera module in the prior art, each time the 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 as shown in FIG. Therefore, in order to obtain the full-color photosensitive information of one pixel, it is necessary to combine the pixel information having the colors of the other three primary colors adjacent to the pixel with the pixel information. For example, as shown in FIG. 3, to obtain the full-color photosensitive information of the pixel R in the second row and the second column, it is necessary to select the pixel G of the third row and the first column adjacent to the pixel R, and the third row and the third row. The pixel G of the column, the pixel B of the second row and the first column, the pixel G of the second row and the second column, the pixel B of the second row and the third column, the pixel B of the fourth row and the first column, and the fourth row and the second The pixel G of the column and the pixel B of the fourth row and the third column perform an interpolation compensation operation, so that the full-color photosensitive information of the pixel R in the second row and the second column can be finally obtained. Similarly, to obtain the full-color light-sensing information of the pixel B of the second row and the third column, the pixel G of the second row and the second column, the pixel G of the second row and the fourth column, and the pixel G of the first row and the second column are required. a pixel G of the first row and the third column, a pixel R of the first row and the fourth column, a pixel R of the third row and the second column, a pixel G of the third row and the third column, and a pixel R of the third row and the fourth column The interpolation compensation operation is performed, so that the full-color photosensitive information of the pixel B of the second row and the third column can be finally obtained. Similarly, to obtain the full-color light-sensing information of the pixel G of the third row and the third column, it is necessary to select the pixel R of the third row and the second column, the pixel R of the third row and the fourth column, and the pixel G of the second row and the second column. a pixel B of the second row and the third column, a pixel G of the second row and the fourth column, a pixel G of the fourth row and the second column, a pixel B of the fourth row and the third column, and a pixel G of the fourth row and the fourth column The interpolation compensation operation is performed, so that the full-color photosensitive information of the pixel G of the third row and the third column can be finally obtained. Because there is a displacement difference between adjacent pixels, Therefore, an error occurs when the full-color photosensitive information of one pixel is obtained, so that the fineness performance of the obtained image information is poor. However, with the camera module provided by the embodiment of the present invention, each pixel can obtain each of the basic colors of the three primary colors of red, green, and blue, and each time an exposure is performed, a picture with a basic color tone can be obtained, after three exposures. After that, each pixel can be obtained with three basic tones.

The camera module provided by the embodiment of the invention includes a line connection substrate, a color filter layer and an image sensor disposed on the line connection substrate, each pixel in the color filter layer is obtained according to the color received by itself. The respective full-color photosensitive information, therefore, each pixel of the color filter layer in the camera module can receive all the colors of the three primary colors of red, green and blue after multiple exposures, and each pixel can adopt each pixel The color received by itself obtains the full-color light-sensing information of each pixel; thus, the full-color light-sensing information of one pixel is obtained in the color filter array of the existing camera module, and multiple adjacent pixels having different colors are needed. The problem of synthesizing information satisfies the user's higher fineness requirements and improves the user's experience.

Embodiment 2

An embodiment of the present invention provides a camera module. As shown in FIG. 5, the camera module includes a line connection substrate 1 and an image sensor 2 disposed on the line connection substrate. The camera module further includes: color filter. 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 on the side away from the line connection substrate 1.

The material of the electrochromic film layer includes: an organic electrochromic material and an inorganic electrochromic material; the organic electrochromic material may include polythiophene and its derivatives, viologen, tetrathiafulvalene, metal phthalocyanine As the compound or the like, the inorganic electrochromic material may include oxides of tungsten, molybdenum, vanadium, niobium, titanium, niobium, tantalum, nickel, and cobalt. The organic electrochromic material can realize discoloration of various colors, excellent optical performance, good cycle reversibility, stable chemical properties of the inorganic electrochromic material, simple preparation process, strong radiation resistance, and easy full curing. By applying different voltages to the electrochromic film layer, each is achieved After three times of exposure, the pixel can obtain three colors of red, green and blue, thus obtaining full-color data of the same pixel point, and achieving the effect of full-color light sensing.

The electrochromic film layer is configured to receive a voltage signal that is synchronously generated by a voltage applied to the shutter by the image sensor, and adjust the presented color. The electrochromic film layer can be made of a nanocrystalline material, and the following is an example in which the material of the electrochromic film layer is a nanocrystal: when the applied voltage signal is 1.0 V, the electrochromic film layer appears. Red; when the applied voltage signal is 1.8V, the electrochromic 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 embodiments of the present invention, the application of a voltage signal to the electrochromic film layer occurs in synchronization with the voltage applied to the shutter by the image sensor.

Wherein, as shown in FIG. 6, a control circuit for the color filter layer is used for applying a voltage signal to the shutter, and applying a corresponding voltage signal to both ends of the control circuit of the color filter layer. That is to say, when the image sensor provides a voltage signal to the shutter, a corresponding voltage signal can be applied to both ends of the control circuit of the color filter layer, thereby ensuring a voltage signal applied on the electrochromic film layer after the camera performs one exposure. So that the picture data of one of the red, green and blue colors is collected at this time, and then the corresponding different voltage signals are applied to the electrochromic film layer, and after two exposures, the red and green colors are collected. The image data of the three colors of blue and blue, after the image sensor processes the obtained three color image data, the red, green and blue primary color data of the same pixel can be obtained.

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

Specifically, the thickness of the electrochromic film layer is set to 300 nm, which can ensure the color filter effect of the first electrochromic film layer, and at the same time, avoid the thickness of the formed camera module is too thick, affecting the aesthetic degree, and satisfying the trend of thinning and thinning.

The electrochromic film layer may be vacuum vapor deposition, magnetron sputtering, chemical vapor deposition, pulsed laser deposition, electrodeposition, sol-gel, spray pyrolysis, anodization, hydrothermal And dissolve It is prepared by methods such as thermal method.

It should be noted that the description of the electrochromic material in the embodiments of the present invention may be referred to the detailed description in other embodiments of the present invention, and details are not described herein again.

Embodiment 3

An embodiment of the present invention provides a camera module. As shown in FIG. 7 , the camera module includes a line connection substrate 1 and an image sensor 2 disposed on the line connection substrate. The camera module further includes: color filter. Layer 3, the color filter layer comprises an electrochromic film layer 4,

The electrochromic film layer 4 comprises: 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 one side of the wiring connection substrate 1.

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

Specifically, since the organic electrochromic material can have different voltage signal values applied in the control circuit for controlling the color filter layer, each pixel in the color filter layer receives only red and green at 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 from 200 nm to 2500 nm, preferably of the electrochromic film layer The thickness can be 300 nm.

Preferably, the thickness of the first electrochromic film layer is set to 300 nm, which can ensure the color filter effect of the first electrochromic film layer, and at the same time, avoid forming the thickness of the camera module to be too thick, affecting the aesthetic degree, and satisfying the thinness and thinness. trend.

Embodiment 4

An embodiment of the present invention provides a camera module. As shown in FIG. 8 , the camera module includes a line connection substrate 1 and an image sensor 2 disposed on the line connection substrate. The camera module further includes: color filter. Layer 3, the color filter layer 3 comprises 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 second electrochromic film layer 42 is disposed on a surface of the first electrochromic film layer 41 away from the image sensor 2.

The materials of the first electrochromic film layer and the second electrochromic film layer may be the same, that is, both are inorganic electrochromic materials.

In addition, as shown in FIG. 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 may be The coloration in the oxidized state and the reduced state in the electroless electrochromic material is different, and the color in the oxidized state and the reduced state is one of three colors of red, green, and blue. At this time, since any one of the first electrochromic film layer and the second electrochromic film layer can realize two colors when applying different voltage signals, when another voltage signal is applied It is possible to cause another electrochromic film layer to exhibit a color different from that already presented. For example, the materials of the first electrochromic film layer and the second electrochromic film layer may include cobalt oxide and cerium oxide. The material of the first electrochromic film layer and the second electrochromic material cannot be the same material at the same time, but are interchangeable.

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

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

The material of the third electrochromic film layer may be the same as that of the first and second electrochromic film layers, and both are inorganic electrochromic materials.

Specifically, as shown in FIG. 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 materials of the second electrochromic film layer and the third electrochromic film layer are materials of the inorganic electrochromic material which can exhibit one of red, green and blue colors in an oxidized state and a reduced state. 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 red, green, and blue colors after three exposures to obtain red and green colors. , blue three-color data.

The thickness of the first electrochromic film layer, the second electrochromic film layer, and the third electrochromic film layer may each be 200 nm to 2500 nm.

Preferably, the thickness of the first electrochromic film layer, the second electrochromic film layer and the third electrochromic film layer is thick The average can be 300 nm.

Specifically, setting the thickness of the first electrochromic film layer to 300 nm can ensure the color filter effect of the first electrochromic film layer, and at the same time, avoiding the thickness of the formed camera module being too thick, affecting the aesthetic degree, and satisfying the thinness and thinness. trend.

Embodiment 5

An embodiment of the present invention provides a camera module. As shown in FIG. 10, the camera module includes a line connection substrate 1 and an image sensor 2 disposed on the line connection substrate. The camera module further includes: color filter. 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 on the side away from the line connection substrate 1.

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

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

Specifically, when liquid crystal molecules of the liquid crystal layer are different in voltage, the direction and angle of deflection of the liquid crystal molecules are different; thus, different voltage signals can be applied to the control circuit of the color filter layer, so that The liquid crystal molecules are deflected.

The liquid crystal layer may specifically apply a corresponding voltage signal to the control circuit of the color filter layer according to the arrangement direction of the liquid crystal molecules and the structure of the pixels arranged in the color filter array, so that the light passes through the lens group of the camera module. After passing through the liquid crystal layer, it may correspond to pixels of the same color in the color filter array, and then the deflection of the polarizer may cause the light to reach the image sensor; thus, after each exposure, each pixel may generate a kind of Basic color, after three exposures, you can get red, green and blue data.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The serial numbers of the embodiments of the present invention are merely for the description, 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 foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as a ROM/RAM, a magnetic disk, an optical disk), and includes a plurality of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute The method described in various embodiments of the invention.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Industrial applicability

The invention provides a camera module, comprising a line connecting substrate, a color filter layer and an image sensor disposed on the line connecting substrate, each pixel in the color filter layer obtaining each pixel according to the color received by itself Full-color sensitization information, thus, the color filter layer in the camera module After each pixel is exposed multiple times, each pixel can obtain the full-color sensitization information of each pixel by using the color received by each pixel itself; thus, the pixel filter of the existing camera module is obtained by one pixel. Full-color sensitization information requires the synthesis of information of a plurality of adjacent pixels having different colors, satisfies the user's higher fineness requirements, and improves the user's experience.

Claims

A camera module, the camera module includes: a line connection substrate and an image sensor disposed on the line connection substrate, the camera module further comprising: a color filter layer;

The color filter layer is disposed on the image sensor and away from a surface of one side of the line connection substrate;

Each pixel in the color filter layer obtains full color sensitization information of each of the pixels according to the color received by itself.
The camera module of claim 1 wherein said color filter layer comprises an electrochromic film layer.
The camera module according to claim 2, wherein the electrochromic film layer is made of a nanocrystalline material.
The camera module according to claim 3, wherein

The electrochromic film layer is configured to receive a voltage signal that is synchronously generated by a voltage applied to the shutter by the image sensor, and adjust the presented color.
The camera module according to claim 4, wherein

The image sensor is configured to apply a corresponding voltage signal to both ends of the control circuit of the color filter layer while providing a voltage signal to the shutter.
The camera module according to claim 2, wherein the electrochromic film layer comprises: a first electrochromic film layer disposed on the image sensor and away from a surface of the side of the line connecting substrate .
The camera module according to claim 6, wherein the material of the first electrochromic film layer is an organic electrochromic material.
The camera module according to claim 6, wherein the electrochromic film layer further comprises: a second electrochromic film layer disposed on a side of the first electrochromic film layer away from the image sensor surface.
The camera module according to claim 8, wherein the materials of the first electrochromic film layer and the second electrochromic film layer are inorganic electrochromic materials.
The camera module according to claim 8, wherein materials of said first electrochromic film layer and said second electrochromic film layer are different.
The camera module according to claim 10, wherein the materials of the first electrochromic film layer and the second electrochromic film layer are respectively in an oxidized state and a reduced state in the inorganic electrochromic material.
The camera module according to claim 8, wherein

One of the first electrochromic film layer and the second electrochromic film layer exhibits two colors when different voltage signals are applied.
The camera module according to claim 8, wherein the camera module further comprises a third electrochromic film layer disposed on the second electrochromic film layer away from the first electrochromic film layer The surface on one side.
The camera module according to claim 13, wherein the materials of the first electrochromic film layer, the second electrochromic film layer and the third electrochromic film layer are all inorganic electrochromic material.
The camera module according to claim 13, wherein

The first electrochromic film layer, the second electrochromic film layer, and the third electrochromic film layer have a thickness of 200 nm to 2500 nm.
The camera module according to claim 15, wherein

The first electrochromic film layer, the second electrochromic film layer, and the third electrochromic film layer each have a thickness of 300 nm.
The camera module of claim 1 , wherein the color filter layer comprises: a liquid crystal layer, a color filter array, and a polarizer;

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

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

The liquid crystal layer is disposed on a surface of the color filter array on a side away from the polarizer.
The camera module according to claim 17, wherein the liquid crystal molecules of the liquid crystal layer have different directions and angles at which liquid crystal molecules are deflected when the applied voltage is different.
The camera module according to claim 18, wherein

The liquid crystal layer is configured to apply a corresponding voltage signal to the color filter layer such that liquid crystal molecules thereof are deflected, so that the light passes through the lens group of the camera module and may correspond to the same color in the color filter array. Pixel.
The camera module according to claim 19, wherein said polarizer is adapted to cause light to reach the image sensor based on the deflecting action.