WO2023179589A1 - Module de caméra et dispositif électronique - Google Patents

Module de caméra et dispositif électronique Download PDF

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Publication number
WO2023179589A1
WO2023179589A1 PCT/CN2023/082707 CN2023082707W WO2023179589A1 WO 2023179589 A1 WO2023179589 A1 WO 2023179589A1 CN 2023082707 W CN2023082707 W CN 2023082707W WO 2023179589 A1 WO2023179589 A1 WO 2023179589A1
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WO
WIPO (PCT)
Prior art keywords
light
camera module
photosensitive
pixel unit
waveband
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PCT/CN2023/082707
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English (en)
Chinese (zh)
Inventor
黄长峰
Original Assignee
维沃移动通信有限公司
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Publication of WO2023179589A1 publication Critical patent/WO2023179589A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/79—Arrangements of circuitry being divided between different or multiple substrates, chips or circuit boards, e.g. stacked image sensors

Definitions

  • This application belongs to the technical field of terminal equipment, and specifically relates to a camera module and electronic equipment.
  • the size of the photosensitive chip in the camera module is subject to certain restrictions.
  • the two points of large number of pixel units and large area of a single pixel unit are incompatible.
  • This application aims to provide a camera module and electronic equipment to solve the problems of poor imaging quality and single imaging function of existing camera modules.
  • inventions of the present application provide a camera module.
  • the camera module includes:
  • a pixel unit the pixel unit includes a plurality of stacked photosensitive layers, each of the photosensitive layers is used to receive light in a wavelength band corresponding to the photosensitive layer;
  • An adjustable spectrum filter the adjustable spectrum filter is arranged opposite to the pixel unit;
  • the tunable spectral filter is switchable between a first state and a second state
  • the tunable spectrum filter When the tunable spectrum filter is in the first state, it can transmit the first waveband light and cut off the second waveband light.
  • the photosensitive layer corresponding to the first waveband light receives the first waveband light. After the light is emitted, the first photosensitive electrical signal is generated;
  • the tunable spectrum filter When the tunable spectrum filter is in the second state, it can transmit light in the second waveband and cut off light in the first waveband.
  • the photosensitive layer corresponding to the second waveband light receives the second waveband light. After the light is emitted, a second photosensitive electrical signal is generated.
  • inventions of the present application provide an electronic device.
  • the electronic device includes the camera module as described above.
  • a photosensitive stack structure as a pixel unit for photosensitivity and using an adjustable spectrum filter
  • multispectral imaging with high pixels and high photosensitivity performance is achieved on the camera module.
  • the stacked pixel units can reduce the power consumption of the camera module to a certain extent and improve the resolution, and combined with the adjustable spectral filter can expand the application scope of the camera module.
  • Figure 1 is a schematic structural diagram of a camera module provided according to an embodiment of the present application.
  • Figure 2 is a schematic diagram of the principle of the photosensitive layer of the camera module provided according to an embodiment of the present application
  • Figure 3 is a schematic diagram of the spectral transmittance of the electrically tunable spectral filter of the camera module provided according to an embodiment of the present application;
  • Figure 4 is a schematic structural diagram of an embodiment of an electrically tunable spectral filter of a camera module provided according to an embodiment of the present application;
  • FIG. 5 is one of the flow charts of the control method of the camera module provided according to the embodiment of the present application.
  • Figure 6 is the second flow chart of the control method of the camera module provided according to the embodiment of the present application.
  • Figure 7 is the third flow chart of the control method of the camera module provided according to the embodiment of the present application.
  • first and second features in the description and claims of this application may include one or more of these features, either explicitly or implicitly.
  • plural means two or more.
  • and/or in the description and claims indicates at least one of the connected objects, and the character “/” generally indicates that the related objects are in an “or” relationship.
  • connection should be understood in a broad sense.
  • connection or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components.
  • connection or integral connection
  • connection or integral connection
  • connection can be a mechanical connection or an electrical connection
  • it can be a direct connection or an indirect connection through an intermediate medium
  • it can be an internal connection between two components.
  • specific meanings of the above terms in this application can be understood on a case-by-case basis.
  • a camera module is provided, which can be applied to various forms of electronic equipment.
  • the camera module provided by the embodiment of the present application is, for example, a CMOS camera module (CMOS Camera Module, CCM), which is a camera module that is currently widely used in smart mobile terminal devices.
  • CMOS Camera Module CCM
  • the camera modules provided by the embodiments of the present application include but are not limited to the above-mentioned CMOS camera module, and the embodiments of the present application are not limited here.
  • the camera module includes a pixel unit 1.
  • the pixel unit 1 includes a plurality of photosensitive layers arranged in a stack. Each photosensitive layer can be used to receive light in a wavelength band corresponding to the photosensitive layer;
  • the camera module also includes an adjustable spectrum filter 2, which is arranged opposite to the pixel unit 1;
  • the tunable spectral filter 2 is switchable between the first state and the second state;
  • the tunable spectrum filter 2 When the tunable spectrum filter 2 is in the first state, it can transmit the first waveband light and cut off the second waveband light. After receiving the first waveband light, the photosensitive layer of the waveband corresponding to the first waveband light generates a third waveband light. One senses photoelectric signals;
  • the tunable spectrum filter 2 When the tunable spectrum filter 2 is in the second state, it can transmit light of the second waveband and cut off the light of the first waveband. After receiving the light of the second waveband, the photosensitive layer of the waveband corresponding to the second waveband light generates a third waveband light. 2. Sensing photoelectric signals.
  • the pixel unit 1 includes a plurality of photosensitive layers of different photosensitive colors (for example, red, green, blue, or RGB), and each photosensitive layer is stacked in sequence, forming a stack.
  • photosensitive layers for example, red, green, blue, or RGB
  • the pixel unit 1 provided in the embodiment of the present application is a stacked pixel structure, which can utilize the principle that light of different wavelengths has different penetrating powers (the longer the wavelength, the greater the penetration depth, that is, the penetration depth is such as: red light>green light>blue light ), so that each pixel unit 1 can obtain the real light intensity of three wavelengths of light at the pixel unit at the same time. Therefore, when restoring the color information at the pixel unit, that is, when doing three-color synthesis, there is no need to perform algorithmic filtering and interpolation. It can reduce false colors and better show the true color information of the pixel unit. information, which can have better resolution compared to the conventional RGB pixel structure.
  • the pixel unit 1 since the pixel unit 1 does not need to perform color difference, it can obtain more realistic colors and reduce the difference calculation, so the power consumption will be greatly reduced; on the other hand, the pixel unit 1 does not need to go through Algorithmic interpolation and analytical power will also be significantly improved.
  • Figure 2 shows a schematic diagram of the internal circuit structure of the pixel unit 14T.
  • the pixel unit 1 includes three photosensitive areas, that is, a three-layer stacked pixel structure, and also includes four transistors.
  • the four transistors are the reset tube RST, the switch TG, and the row selector SET. and signal amplifier SF.
  • an adjustable spectrum filter 2 is also used, which is different from the infrared filter (IR Filter) used in traditional camera modules.
  • the tunable spectrum filter 2 can adjust the type of filtered spectrum by controlling the voltage applied thereto, for example. That is, under different voltage controls, the tunable spectrum filter 2 is configured to transmit spectra of different wavelength bands. In this way, the types of imaging spectra can be expanded, and the shooting function of the camera module can be expanded.
  • the first band of light is set to visible light (400nm ⁇ 700nm), and the second band of light is set to infrared light (greater than 700nm).
  • the voltage applied to the adjustable spectrum filter 2 it can be achieved Allow visible light to pass through and infrared light to be cut off, or to cut off visible light and infrared light to pass through.
  • the transmittance of the visible light spectrum is high and the transmittance of the infrared spectrum is low.
  • the transmittance of the visible light spectrum is low and the transmittance of the infrared spectrum is high.
  • the camera module uses infrared spectrum imaging (that is, the tunable spectrum filter 2 allows infrared light to pass through and visible light to cut off), it can perform night vision, detect human body temperature, etc., and can achieve this through infrared imaging in cloud and fog environments. Imaging through clouds and fog.
  • the stacked pixel unit 1 can reduce the power consumption of the camera module to a certain extent and improve the resolution, and combined with the adjustable spectrum filter 2 can expand the application range of the camera module.
  • the camera module also includes an image processing device.
  • the image processing device is electrically connected to the pixel unit 1.
  • the image processing device is configured to perform at least one of the following functions based on different photosensitive electrical signals generated by the pixel unit:
  • a second target image is generated according to the second photosensitive electrical signal.
  • the camera module provided by the embodiment of the present application can have at least two different shooting modes, and can correspondingly generate two different images.
  • the image processing device may include, for example, an amplifier, an analog-to-digital converter (Analog-to-digital converter, ADC), an image signal processor (mage Signal Processing, ISP), etc.
  • the pixel unit 1 is electrically connected to an amplifier, a digital-to-analog converter and an image signal processor in sequence.
  • the photosensitive electrical signal generated by the pixel unit 1 can be passed through an amplification circuit, an AD conversion circuit, etc. in sequence to form a digital signal matrix ( image).
  • the user selects a first band of light spectrum imaging, and the first band of light is, for example, visible light. That is, in the visible light spectrum imaging mode, the tunable spectrum filter 2 is controlled to be in the first state, visible light can pass through the tunable spectrum filter 2, and the pixel unit 1 can receive light of different colors in the visible light for imaging.
  • the light is sensed and processed by an analog-to-digital converter (ADC), and then image signal processing is performed by an image signal processor (ISP), and then a visible light spectrum imaging picture is output.
  • ADC analog-to-digital converter
  • ISP image signal processor
  • the pixel unit 1 Since the pixel unit 1 is designed as a stacked structure, it avoids the problem of conventional pixel plane structures occupying a large space; and, under the condition of having a large number of pixel units, each pixel unit can still have a large photosensitive area. At the same time, the stacked structure There is no need to perform filtering and interpolation during pixel synthesis and imaging, reducing false colors.
  • the user selects a second waveband light spectrum for imaging, and the second waveband light is, for example, infrared light. That is, in the infrared spectrum imaging mode, the tunable spectrum filter 2 is controlled to be in the second state, infrared light can pass through the tunable spectrum filter 2, and the pixel unit 1 can directly receive the infrared light and perform imaging.
  • the corresponding photosensitivity is processed by the analog-to-digital converter, and then the image signal processor performs image signal processing, and then outputs the infrared spectrum imaging picture.
  • the pixel unit 1 is a stacked structure, It avoids the problem of large space occupied by conventional pixel planar structures; and, with a large number of pixel units, each pixel unit can still have a large photosensitive area. At the same time, there is no need for filtering and interpolation during the stacked structure pixel synthesis imaging process. , reduce false colors.
  • the user when using the camera module, the user can flexibly select at least one of the visible light spectrum and the infrared light spectrum for imaging according to specific shooting needs.
  • the camera module also includes an image processing device.
  • the image processing device is electrically connected to the pixel unit 1.
  • the image processing device is used to perform the following functions according to different photosensitive electrical signals generated by the pixel unit 1:
  • the camera module provided by the embodiment of the present application can also operate in the first-band light and second-band light dual-spectrum imaging mode, and then realize the imaging function through multi-frame fusion technology.
  • the tunable spectral filter 2 can transmit the first waveband light and cut off the second waveband light.
  • the pixel unit 1 receives the first waveband light for photosensitization, and then passes through the image. After processing by the processing device, the imaging photos under the first waveband light are output; wherein, the first waveband light is visible light and the second waveband light is infrared light, then the visible light imaging photos are output in this step;
  • the tunable spectral filter 2 cuts off the first waveband light and transmits the second waveband light.
  • the pixel unit 1 receives the second waveband light for photosensitization. After being processed by the image processing device, the imaging photos under the second waveband light are output; wherein the first waveband light is visible light and the second waveband light is infrared light, then in this step, the infrared light imaging photos are output;
  • first-band light and second-band light imaging photos are fused and output, achieving dual-spectrum imaging, that is, dual-spectrum imaging photos of visible light and infrared light.
  • the pixel unit 1 can provide high photosensitivity performance for these two spectral imaging conditions. There is no need to perform filtering and interpolation during the synthetic imaging process of pixel unit 1, which provides convenient implementation conditions for image fusion.
  • this dual-spectrum imaging mode can be used to achieve perspective imaging through clouds and fog.
  • the tunable spectral filter 2 includes a filter for transmitting The first light-transmitting area 201 for transmitting light of one wavelength band and the second light-transmitting area 202 for transmitting light of the second wave band; the first light-transmitting areas 201 and the second light-transmitting area 202 are arranged alternately and arranged to form a set transmission area. Light array; each first light-transmitting area 201 is connected, and each second light-transmitting area 202 is connected.
  • the tunable spectral filter 2 provided in the embodiment of the present application can be designed to perform filter adjustment by regional control.
  • the sub-regions here refer to two regions, namely:
  • Area 1 is an area that can transmit light of the first waveband and cut off light of the second waveband, that is, the plurality of first light-transmitting areas 201 mentioned above.
  • the plurality of first light-transmitting areas 201 are connected to each other to form area 1;
  • Region two is a region that can transmit light of the second wavelength band and cut off light of the first wavelength band, that is, the plurality of second light-transmitting regions 202 mentioned above.
  • the plurality of second light-transmitting regions 202 are connected to each other to form region two.
  • the first light-transmitting areas 201 and the second light-transmitting areas 202 are arranged alternately, see the structure shown in FIG. 4, which is beneficial to performing two different wavelength band light fusion imaging.
  • first light-transmitting areas 201 are arranged at intervals, they are indeed connected together, so that they can form a whole, which is beneficial to power supply control.
  • the plurality of second light-transmitting areas 202 are also connected.
  • each pixel unit 1 includes three photosensitive layers arranged in a stack, and the photosensitive layers are made of silicon material. Photodiode.
  • the number and arrangement of the pixel units 1 can be flexibly adjusted according to specific needs, and this is not limited in the embodiments of the present application.
  • Each photosensitive layer in each pixel unit 1 is a photodiode of silicon material, which can detect light in the corresponding band respectively, so that one pixel unit can have a variety of pixel information; at the same time, each photosensitive layer in each pixel unit 1
  • the layer may also be photosensitive to, for example, infrared light.
  • each pixel unit 1 includes a first photosensitive layer 101 , a second photosensitive layer 102 and a third photosensitive layer 103 that are stacked sequentially from bottom to top, where the first photosensitive layer 101 is configured as a red photosensitive layer. , the second photosensitive layer 102 is configured as a green photosensitive layer, and the third photosensitive layer 103 is configured as a green photosensitive layer, forming a stacked RGB pixel structure.
  • the pixel unit 1 can form a stacked pixel structure with a red photosensitive layer located on the bottom layer, a green photosensitive layer located on the middle layer, and a blue photosensitive layer located on the upper layer.
  • This stacking sequence takes advantage of the principle that light of different wavelengths has different penetrating power. The longer the wavelength, the greater the penetration depth. According to the penetration depth: red light>green light>blue light, see Figure 1. This allows each pixel unit 1 to simultaneously obtain the real light intensity of three wavelengths of light at the pixel point.
  • the first waveband light is visible light
  • each pixel unit 1 can receive light of multiple colors in the visible light for photosensitization.
  • the first band of light is a visible light spectrum with a wavelength between 400nm and 700nm.
  • each pixel unit 1 When the visible light passes through the tunable spectrum filter 2, the visible light is incident on each pixel unit 1 below. Since each pixel unit 1 includes multiple photosensitive layers, each pixel unit 1 can simultaneously obtain the real image at that point. The light intensity of the three wavelengths of red, green, and blue light, in this way, each pixel unit 1 can realize a large area of light sensitivity, which can improve the quality of visible spectrum imaging.
  • the camera module performs visible spectrum imaging and can be used to detect the color of object images within human vision and in line with human vision.
  • the second waveband light is infrared light
  • each pixel unit 1 can receive infrared light for photosensitization.
  • the second band of light is an infrared light spectrum with a wavelength greater than 700nm.
  • the camera module can perform imaging only in the infrared spectrum.
  • each photosensitive layer of each pixel unit 1 is based on a photosensitive diode made of silicon material, so that it can directly sense infrared light. This realizes infrared spectrum imaging of the camera module.
  • Infrared spectrum imaging can be used to detect object image information beyond human vision.
  • the second waveband light is ultraviolet light
  • each pixel unit 1 can receive ultraviolet light for photosensitization.
  • the camera module can also be used to perform imaging under ultraviolet light.
  • the tunable spectrum filter 2 is provided with an electrode structure 3; the electrode The structure 3 is electrically connected to the tunable spectrum filter 2, and the electrode structure 3 is used to provide a driving voltage for the tunable spectrum filter 2 to drive the tunable spectrum filter 2 to be adjustable between the first state and the second state. switch.
  • the tunable spectrum filter 2 by controlling the voltage applied thereto, the selective transmission of the spectrum by the tunable spectrum filter 2 can be achieved.
  • the tunable spectrum filter 2 when no voltage is applied to the tunable spectrum filter 2, it is in the first state, allowing visible light to pass through and infrared light to be cut off; when the tunable spectrum filter 2 is subject to a voltage, , it is in the second state, allowing infrared light to pass through and visible light to be cut off.
  • the tunable spectrum filter 2 is different from a conventional infrared filter. It has an electrode structure.
  • the material of the tunable spectrum filter 2 is an electrotropic material.
  • the electrode structure 3 is arranged on the tunable spectrum filter 2, and a voltage can be applied to the tunable spectrum filter 2, see Figure 1.
  • the electrode structure 3 is made of transparent material electrodes. In this way, full spectrum transparency can be achieved without affecting imaging.
  • the electrode structure 3 is made of indium tin oxide (ITO).
  • This electrode material is transparent and can transmit the full spectrum without affecting imaging.
  • the position of the electrode structure 3 on the tunable spectrum filter 2 can be flexibly adjusted according to specific needs, and is not limited in the embodiments of the present application.
  • the electrode structure 3 is disposed on the surface of the tunable spectral filter 2 facing away from the pixel unit 1 .
  • the electrode structure 3 is disposed on the surface of the tunable spectral filter 2 facing the pixel unit 1 .
  • the electrode structure 3 is provided on both surfaces of the tunable spectrum filter 2 .
  • the electrode structure 3 can be disposed on the edge area of a surface of the tunable spectrum filter 2 .
  • the electrode structure 3 can be provided on the tunable spectrum filter 2 through coating or conductive adhesive bonding.
  • the shape of the electrode structure 3 can also be flexibly set, such as a ring-shaped structure, etc., which is not specifically limited in the embodiments of the present application.
  • the camera module also includes a microlens layer 4.
  • the microlens layer 4 is disposed between the tunable spectrum filter 2 and the pixel unit 1, and covers the pixel unit 1. above.
  • a micro lens layer 4 (Micro Lens) is provided on the uppermost layer of the pixel unit 1.
  • This micro lens layer 4 is mainly used to condense light to obtain more light input.
  • the camera module also includes a camera lens, and the tunable spectrum filter 2 is disposed between the camera lens and the pixel unit 1 .
  • the camera lens can be flexibly set to one or more as needed.
  • the first band of light is a visible light spectrum with a wavelength between 400nm and 700nm
  • the second band of light is an infrared light spectrum with a wavelength greater than 700nm.
  • the pixel unit 1 includes a red photosensitive layer and a green photosensitive layer stacked sequentially from bottom to top. Taking the green photosensitive layer as an example, the control method involved in the camera module provided by the embodiment of the present application will be further explained.
  • the camera module provided by the embodiment of this application has three imaging functions, corresponding to three different imaging control methods: visible light spectrum imaging control method, infrared light spectrum imaging control method, and visible light and infrared light spectrum dual spectrum imaging control method.
  • the user can select a photo imaging mode.
  • the camera module performs different control methods in different camera modes.
  • the control method for imaging of the camera module in visible light spectrum mode includes the following steps:
  • the camera module needs to take pictures under visible light. At this time, for example, no voltage is applied to the tunable spectrum filter. That is, the tunable spectral filter is in the first state.
  • Unit 1 When external light is incident on the tunable spectrum filter 2, it can only allow visible light to pass through, while infrared light is intercepted and cannot pass through. At this time, it can be avoided that infrared light in visible light imaging is also transmitted to the lower pixels. Unit 1 is sensitive to light, causing photos taken under visible light to appear reddish.
  • the pixel unit 1 is photosensitive and can form a corresponding photosensitive electrical signal
  • Each pixel unit 1 located in the lower layer can receive red, green, and blue light in visible light for photosensitivity, and form a corresponding photosensitive electrical signal, such as a first photosensitive electrical signal.
  • the image processing device can respond to the photosensitive electrical signal output in S503 and control the generation of visible light spectrum imaging photos for output, so that the user can obtain the pictures he wants to take.
  • Visible spectrum imaging is used to detect the color of object images within human vision and in line with human vision.
  • the method of controlling the imaging of the camera module in the infrared light spectrum includes the following steps:
  • the camera module needs to shoot under infrared light.
  • a certain voltage is applied to the tunable spectrum filter, that is, the tunable spectrum filter is in the second state.
  • infrared light can be transmitted and visible light can be cut off;
  • the tunable spectrum filter 2 When external light is incident on the tunable spectrum filter 2, it can only transmit infrared light, while visible light is intercepted and cannot pass through.
  • the pixel unit is photosensitive and can form a corresponding photosensitive electrical signal
  • Each pixel unit 1 located in the lower layer can receive infrared light and perform photosensitization, and form a corresponding photosensitive electrical signal, such as a second photosensitive electrical signal.
  • the image processing device responds to the photosensitive electrical signal output in S603 and generates an infrared spectrum imaging photo for output.
  • Infrared spectrum imaging can be used to detect human body temperature, detect the composition of plastic waste, night vision, etc.
  • the dual-spectrum imaging control method of the camera module in the visible light and infrared light spectrum includes the following steps:
  • the camera module needs to take pictures under visible light. At this time, for example, no voltage is applied to the tunable spectrum filter. That is, the tunable spectral filter is in the first state.
  • Unit 1 When external light is incident on the tunable spectrum filter 2, it can only allow visible light to pass through, while infrared light is intercepted and cannot pass through. At this time, it can be avoided that infrared light in visible light imaging is also transmitted to the lower pixels. Unit 1 is sensitive to light, causing photos taken under visible light to appear reddish.
  • the pixel unit is photosensitive and can form corresponding photosensitive electrical signals
  • Each pixel unit 1 located in the lower layer can receive red, green, and blue light in visible light for photosensitivity, and form a corresponding photosensitive electrical signal, such as a first photosensitive electrical signal.
  • the image processing device can respond to the photosensitive electrical signal output by S7013 and control the generation of visible light spectrum imaging photos for output, so that the user can obtain the pictures they want to take.
  • the camera module needs to take pictures under infrared light.
  • a certain voltage is applied to the tunable spectrum filter, that is, the tunable spectrum filter is in the second state.
  • infrared light can be transmitted and visible light can be cut off;
  • the tunable spectrum filter 2 When external light is incident on the tunable spectrum filter 2, it can only transmit infrared light, while visible light is intercepted and cannot pass through.
  • the pixel unit is photosensitive and can form corresponding photosensitive electrical signals
  • Each pixel unit 1 located in the lower layer can receive infrared light and perform photosensitization, and form a corresponding photosensitive electrical signal, such as a second photosensitive electrical signal.
  • the image processing device responds to the photosensitive electrical signal output by S7023 and generates an infrared spectrum imaging photo for output.
  • S701 and S702 are performed alternately, but there is no strict order restriction.
  • Multi-frame visible light and infrared spectrum imaging photos are fused and output to realize dual spectrum imaging of visible light and infrared spectrum.
  • an electronic device is provided.
  • Electronic equipment includes the above camera module.
  • the electronic device may be a terminal or other devices other than a terminal.
  • the electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted electronic device, a mobile Internet device (MID), or augmented reality.
  • AR /virtual reality (VR) equipment, robots, wearable devices, ultra-mobile personal computers (UMPC), netbooks or personal digital assistants (PDA), etc.
  • NAS Network Attached Storage
  • personal computer personal computer, PC
  • television television

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Abstract

Des modes de réalisation de la présente invention concernent un module de caméra et un dispositif électronique. Le module de caméra comprend une unité de pixel et un filtre spectral réglable ; l'unité de pixel comprend une pluralité de couches photosensibles empilées, et chaque couche photosensible est utilisée pour recevoir la lumière dans une bande d'ondes correspondant à la couche photosensible ; le filtre spectral réglable est fourni à l'opposé de l'unité de pixel ; le filtre spectral réglable peut être commuté entre un premier état et un second état ; lorsque le filtre spectral réglable est dans le premier état, la première bande d'ondes lumineuses peut être transmise et la deuxième bande d'ondes lumineuses est coupée, et une couche photosensible dans une bande d'ondes correspondant à la première bande d'ondes lumineuses génère un premier signal électrique photosensible après avoir reçu la première bande d'ondes lumineuses ; lorsque le filtre spectral réglable est dans le deuxième état, la deuxième bande d'ondes lumineuses peut être transmise et la première bande d'ondes lumineuses est coupée, et une couche photosensible dans une bande d'ondes correspondant à la deuxième bande d'ondes lumineuses génère un deuxième signal électrique photosensible après avoir reçu la deuxième bande d'ondes lumineuses.
PCT/CN2023/082707 2022-03-22 2023-03-21 Module de caméra et dispositif électronique WO2023179589A1 (fr)

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