CN107479250B

CN107479250B - Light-emitting device and electronic equipment

Info

Publication number: CN107479250B
Application number: CN201710612694.8A
Authority: CN
Inventors: 张圣杰; 申世安
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2017-07-25
Filing date: 2017-07-25
Publication date: 2021-05-21
Anticipated expiration: 2037-07-25
Also published as: CN107479250A

Abstract

The embodiment of the invention discloses a light-emitting device, which at least comprises: the control module is respectively electrically connected with the light source and the controllable optical filter part, wherein the light source is used for generating light of a first color; the controllable optical filtering part is used for filtering the light of the first color to obtain and emit light of a second color, wherein the color of the light of the second color is different from that of the light of the first color; the control module is used for obtaining a light-emitting instruction, wherein the light-emitting instruction carries the indication information of the second color; executing the light-emitting instruction to control the light source to emit light; and controlling the controllable light filtering part to filter light based on the indication information. The embodiment of the invention also discloses electronic equipment.

Description

Light-emitting device and electronic equipment

Technical Field

The present invention relates to the field of electronic devices, and particularly to a light emitting device and an electronic device.

Background

With the continuous development of science and technology, electronic equipment has become a necessity in daily life of people, and photographing is a very important function for the existing electronic equipment such as a smart phone, a tablet personal computer and the like, so that people can enjoy the convenience brought by the development of science and technology.

At present, when ambient light quality is relatively poor, like night, rainy day, perhaps, entertain at the user, like under the condition such as shoot ancient ways, the in-process that the user used electronic equipment to shoot often can carry out the light filling through the flash light. However, most electronic devices are equipped with a flashlight that is composed of a plurality of monochromatic leds, and because of the limited space it is not possible to assemble leds of all colors, but color matching is performed with a limited number (e.g., 3) of monochromatic leds, so that the flashlight can only produce light of a limited number of colors.

Therefore, the color of light generated by the conventional flash lamp is single, and the increasing light supplement requirements of users cannot be met.

Disclosure of Invention

In view of the above, embodiments of the present invention provide a light emitting device and an electronic apparatus capable of generating light with rich colors to solve at least one problem in the prior art.

The technical scheme of the embodiment of the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a light emitting device, including at least: the control module is respectively electrically connected with the light source and the controllable optical filter part, wherein the light source is used for generating light of a first color; the controllable optical filtering part is used for filtering the light of the first color to obtain and emit light of a second color, wherein the color of the light of the second color is different from that of the light of the first color; the control module is used for obtaining a light-emitting instruction, wherein the light-emitting instruction carries the indication information of the second color; executing the light-emitting instruction to control the light source to emit light; and controlling the controllable light filtering part to filter light based on the indication information.

In a second aspect, an embodiment of the present invention provides an electronic device, where the electronic device at least includes: the processing module is used for obtaining a light emitting instruction, wherein the light emitting instruction is used for indicating the light emitting device to emit light of a second color and carries indication information of the second color; sending the light emitting instruction to the control module; the control module is used for executing the light-emitting instruction and controlling the light source to generate light of a first color, wherein the color of the light of the first color is different from that of the light of the second color; and controlling the controllable light filtering part to filter the light of the first color based on the indication information to obtain and emit the light of the second color.

An embodiment of the present invention provides a light-emitting device and an electronic apparatus, where the light-emitting device includes: the light source, the controllable light filtering part opposite to the light source and the control module are respectively and electrically connected with the light source and the controllable light filtering part. When light of different colors needs to be emitted, the control module can control the light source to generate light of a first color, and when the light of the first color enters the controllable optical filter part, the control module controls the controllable optical filter part to filter the light of the first color based on indication information of a second color, so that the light of the second color is obtained and emitted. In this way, since the light of one color is filtered by the controllable filter portion to emit the light of the other color, rather than being generated by directly color-mixing a plurality of different colors of light, it is possible to provide colorful light when only a single light emitting diode is used as a light source, and the variety of colors of light emitted by the light emitting device is greatly enriched.

Drawings

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

fig. 2 is a schematic structural diagram of a light-emitting device according to a first embodiment of the invention;

fig. 3 is a schematic structural diagram of a controllable optical filter portion according to a first embodiment of the present invention;

FIG. 4A is a schematic structural diagram of a first filter layer according to a first embodiment of the invention;

fig. 4B is a schematic structural diagram of a first grid plate according to a first embodiment of the present invention;

FIG. 5A is a schematic structural diagram of a second filter layer according to a first embodiment of the present invention;

fig. 5B is a schematic structural diagram of a second grid plate in the first embodiment of the present invention;

fig. 6A is a first schematic view illustrating a state of a controllable optical filter portion according to a first embodiment of the present invention;

fig. 6B is a schematic view illustrating a state of a controllable optical filter portion according to a first embodiment of the present invention;

fig. 6C is a third schematic view illustrating a state of the controllable optical filter portion according to the first embodiment of the present invention;

fig. 7A is a first schematic structural diagram of a light-emitting device according to a second embodiment of the present invention;

fig. 7B is a second schematic structural diagram of a light-emitting device according to a second embodiment of the present invention;

fig. 7C is a schematic structural diagram of a light-emitting device according to a second embodiment of the present invention;

fig. 8 is a schematic structural diagram of an electronic device in a third embodiment of the invention.

Detailed Description

It should be understood that the embodiments described herein are only for explaining the technical solutions of the present invention, and are not intended to limit the scope of the present invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.

The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.

Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: a Radio Frequency (RF) unit 101, a Wi-Fi (Wireless-Fidelity) module 102, an audio output unit 103, an audio/video (a/V) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM, GPRS (General Packet Radio Service), CDMA2000, WCDMA, TD-SCDMA, FDD-LTE, TDD-LTE, etc.

Wi-Fi belongs to a short-distance wireless transmission technology, and a mobile terminal can help a user to receive and send emails, browse webpages, access streaming media and the like through a Wi-Fi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the Wi-Fi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the Wi-Fi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the Wi-Fi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.

Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.

Various embodiments of the method of the present invention will be presented below based on the above-mentioned mobile terminal hardware structure.

The technical solution of the present invention is further elaborated below with reference to the drawings and the specific embodiments.

Example one

Fig. 2 is a schematic structural diagram of a light emitting device according to a first embodiment of the present invention, and referring to fig. 2, the light emitting device at least includes: the device comprises a light source 21, a controllable optical filter part 22 opposite to the light source and a control module 23, wherein the control module 23 is respectively electrically connected with the light source 21 and the controllable optical filter part 22;

the light source 21 is configured to generate light 211 of a first color; the controllable optical filter portion 22 is configured to filter the light 211 of the first color to obtain and emit light 221 of a second color, where the light 211 of the second color is different from the light 221 of the first color; the control module 23 is configured to obtain a light emitting instruction, where the light emitting instruction carries indication information of a second color; executing a light emitting instruction to control the light source to emit light; based on the instruction information, the controllable filter portion is controlled to filter light.

In a specific implementation, in order to enable the light emitting device to emit light of different colors, the light of the first color is composite light capable of generating dispersion, such as white light, yellow light, purple light, and the like. Then, the light source may be a light emitting element capable of emitting composite light, specifically, the light source may be a white light emitting diode, or a combination of a plurality of monochromatic light emitting diodes, or of course, other light sources may also be used, such as a white light emitting diode array, or a combination of three primary color light emitting diodes, and the embodiment of the present invention is not limited in particular herein.

For example, since the white light includes light of all colors, the white light can emit light of various colors after being filtered, and thus, the light of the first color may be white light. Then, in order to take into account the volume of the light emitting device and the number of colors of light of the second color that the light emitting device can emit, the light source may be a white light emitting diode; in order to make the light of the second color emitted by the light emitting device brighter, the light source may also be a white light emitting diode array or a combination of a plurality of white light emitting diodes.

In a specific implementation, the color and type of the light of the second color are different according to the color and type of the light filtered by the controllable light-filtering portion from the light of the first color. Specifically, the light of the second color may be three primary colors, such as red light, green light, and blue light, and the light of the second color may also be composite light, such as purple light, yellow light, orange light, and the like. Here, the embodiments of the present invention are not particularly limited.

For example, after the controllable optical filter portion filters the light of the first color, if the controllable optical filter portion filters only one of the three primary colors of light from the light of the first color, such as green light, then the light of the second color is the one of the three primary colors of light, such as green light; if the controllable light-filtering portion filters out at least two of the three primary colors of light, such as red light and blue light, the light of the second color may be a composite light formed by color mixing of at least two of the three primary colors of light, such as violet light; if the controllable filter portion directly filters out a certain composite light, such as purple light, then the light of the second color is the certain composite light, such as purple light.

In practical applications, the control module may be a Micro Controller Unit (MCU), a Single Chip Microcomputer (Single Chip Microcomputer), or other modules, such as a microprocessor (Micro Processor Unit, MPU), a Single Chip Microcomputer (Microcontrollers), and the like, where embodiments of the present invention are not limited in detail.

In practical applications, the light-emitting device may be used in various applications depending on the application scene of the light-emitting device. For example, the light-emitting device can be used as a flash lamp to provide light supplementary sources of various colors for a user when the user takes a picture; the light-emitting device can also be used as an illuminating lamp to provide various colors of light for a user when the user needs illumination. Of course, the light-emitting device may also have other application scenarios, such as being used as an indicator light, and displaying different colors of indicator lights when the terminal receives different prompt messages, where the embodiment of the present invention is not particularly limited.

The structure of the controllable optical filter portion in the light emitting device will be described in detail below.

First, the controllable optical filter portion will be described as a whole.

In a specific implementation process, fig. 3 is a schematic structural diagram of a controllable optical filter portion according to a first embodiment of the present invention, and referring to fig. 3, the controllable optical filter portion at least includes: a first filter layer 31, a liquid crystal layer 32, and a second filter layer 33 which are laminated in this order; wherein the first filter layer 31 at least comprises: a first electrode 311 and a first alignment film 312; the second filter layer 33 includes at least: a second electrode 331 and a second alignment film 332.

Here, the first electrode and the second electrode cooperate to apply a voltage to the liquid crystal layer to control a glare state of liquid crystal in the liquid crystal layer; the first alignment film and the second alignment film are matched to provide a pretilt angle for liquid crystal in the liquid crystal layer so as to control the deflection angle of the liquid crystal in the liquid crystal layer.

Specifically, the control module is configured to generate a corresponding electric control signal based on the indication information; transmitting an electric control signal to the first electrode and the second electrode, and applying a voltage to the liquid crystal layer through the first electrode and the second electrode; the first alignment film and the second alignment film are used for aligning liquid crystal in the liquid crystal layer after the first electrode and the second electrode apply voltage to the liquid crystal layer so as to control the liquid crystal in the liquid crystal layer to regularly deflect; the liquid crystal layer is used for regularly refracting the light of the first color when the light of the first color enters the liquid crystal layer so as to adjust the light angle and the light intensity of the light of the first color.

In practical application, after the control module obtains the light emitting instruction, the control module generates an electric signal for emitting light and sends the electric signal for emitting light to the light source so as to control the light source to generate light of a first color; meanwhile, the control module generates a corresponding electric control signal based on the indication information of the second color carried in the light-emitting instruction, and sends the electric control signal to the first electrode and the second electrode, so that voltage is applied to the liquid crystal layer through the first electrode and the second electrode, and liquid crystal in the liquid crystal layer is aligned through the first alignment film and the second alignment film, and the purpose of controlling the liquid crystal in the liquid crystal layer to regularly deflect is achieved. Next, after the liquid crystal in the liquid crystal layer is deflected, when the light of the first color is incident from the first filter layer, the liquid crystal in the liquid crystal layer can regularly refract the light of the first color; when the refracted first color light enters the second filter layer, the second filter layer can filter the refracted first color light and emit a second color light.

Next, a first filter layer in the controllable filter portion is described.

In a specific implementation process, fig. 4A is a schematic structural diagram of a first filter layer in the first embodiment of the present invention, and referring to fig. 4A, the first filter layer 31 at least includes: a first glass substrate 41, a first polarizing plate 42 disposed on an upper surface of the first glass substrate, and a first grid plate 43 disposed on a lower surface of the first glass substrate;

as still shown in fig. 4A, the first grid plate 43 includes: the light-shielding layer includes a first light-shielding portion 431 and a light-transmitting portion 432, wherein the light-transmitting value of the first light-shielding portion 431 is a first value, and the light-transmitting value of the light-transmitting portion 432 is a second value, and the second value is larger than the first value.

When the light of the first color enters the first filter layer, the first polarizing plate can adjust the incident angle of the light of the first color so that the light of the first color can be transmitted through the first glass substrate and enter the light transmitting part; when the light of the first color is emitted from the light-transmitting portion, the light of the first color can transmit through the first electrode and the first alignment film and enter the liquid crystal layer.

In practical application, the first polarizer is used for adjusting an incident angle corresponding to the first color of light incident into the controllable optical filter portion; the first glass substrate plays a role in supporting and fixing, so that the first filter layer is not easy to deform, and the first polarizing plate, the first grid plate and other components in the first filter layer can be attached.

Further, referring to fig. 4B, the first grid plate 34 has a grid-shaped structure, wherein the first shading part is a grid-shaped frame formed by the first grid bars 433 crossing each other; the light-transmitting portion is a gap 434 formed by the first grid bars 433 crossing each other.

Here, the first light-shielding portion may be a black grid-shaped frame that can absorb light of all colors, and therefore, the first light-shielding portion can shield light so that light of the first color cannot be emitted from the first light-shielding portion when the light enters the first light-shielding portion; the light transmitting portion is a hole-shaped void and can transmit light, and therefore, when light of the first color is incident on the light transmitting portion, the light can be directly emitted from the light transmitting portion.

Finally, a second filter layer in the controllable filter part is described.

In a specific implementation process, fig. 5A is a schematic structural diagram of a second filter layer in the first embodiment of the invention, and referring to fig. 5A, the second filter layer 33 at least includes: a second glass substrate 51, a second grid plate 52 disposed on the upper surface of the second glass substrate, and a second polarizer 53 disposed on the lower surface of the second glass substrate;

as still shown in fig. 5A, the second grid plate 52 includes: a second light shielding portion 521 and a filter portion 522.

Here, the light transmission value of the second light shielding portion is a first value, and the shape of the second light shielding portion coincides with the shape of the first light shielding portion; the position of the light filter part corresponds to the position of the light transmission part.

When the light of the first color is emitted from the liquid crystal layer, passes through the second electrode and the second alignment film, and enters the light filter part, the light filter part can filter the light of the first color to obtain and emit light of a second color; when the light of the second color is emitted from the filter and enters the second polarizing plate, the second polarizing plate can adjust the emission angle of the light of the second color so as to converge the light of the second color.

In practical application, the second glass substrate plays a role in supporting and fixing so that the second filter layer is not easy to deform, and components such as the second alignment film, the second grid plate and the second polarizing plate in the second filter layer can be attached; the second polarizer is used for adjusting the emergent angle corresponding to the light of the second color which is emitted out of the controllable light filtering part.

Further, referring to fig. 5B, the second grid plate 52 has a grid-shaped structure, wherein the second shading part is a grid-shaped frame formed by intersecting the second grid bars 523; the filter portion is a color filter 525 provided in a space 524 formed by the second grid bars 523 intersecting each other.

Here, the second light-shielding portion may be a black grid-shaped frame that can absorb light of all colors, and therefore, the second light-shielding portion can shield light so that light of the first color cannot be emitted from the second light-shielding portion when the light enters the second light-shielding portion; the filter portion is configured by a color filter group provided in a gap formed by the second grating bars intersecting each other, and therefore, the filter portion can filter light of the first color, absorb light included in the light of the first color and having a color different from that of the color filter, obtain light included in the light of the first color and having a color corresponding to that of the color filter, and emit light of the second color.

In a specific implementation process, the color filter may be a three-primary-color light filter, such as a red light filter, a green light filter, and a blue light filter, and can filter light of other colors except for three primary-color light from the light of the first color to filter out three primary-color light corresponding to the three-primary-color light filter, such as red light, green light, and blue light; the color filter may also be a composite optical filter, such as a yellow optical filter, an orange optical filter, or a violet optical filter, and may filter out light of other colors from the light of the first color except for the composite light corresponding to the composite optical filter, so as to filter out the composite light corresponding to the composite optical filter, such as yellow light, orange light, and violet light. Of course, the color filters may also be other color filters, such as a combination of a three-primary color filter and a composite light filter, which is determined by those skilled in the art according to the actual implementation, and the embodiments of the present invention are not limited in this respect.

Specifically, the manner of obtaining the light of the second color may include, but is not limited to, the following two manners according to the type of light that can be filtered out by the color filter and the type of color of the light of the second color that is required: first, light of the second color is obtained directly through a color filter, for example, when green light is required, light of the first color is filtered directly through a green filter to obtain green light, or when violet light is required, light of the first color is filtered directly through a violet filter to obtain violet light. Second, the light filtered by the color filter is color-mixed to obtain light of a second color, for example, when violet is required, the light of the first color can be simultaneously filtered by the red light filter and the blue light filter to obtain red light and blue light, and then the red light and the blue light are color-mixed to obtain the violet light.

The process of the controllable optical filter portion emitting the light of the second color will be further described in detail with reference to the structure of the controllable optical filter portion.

In practical applications, the controllable filter has at least two states: the first mode is a non-operating mode, in which the control module does not apply a voltage to the controllable optical filter portion, and liquid crystal molecules 611 in the liquid crystal layer of the controllable optical filter portion are arranged in disorder as shown in fig. 6A. The second is an operating state, in which the control module applies a voltage to the controllable optical filter portion, so that the controllable optical filter portion can align liquid crystals in the liquid crystal layer to change the arrangement of liquid crystal molecules under each color filter, as shown in fig. 6B, the liquid crystal molecules in the liquid crystal layer of the controllable optical filter portion are orderly arranged, for example, the liquid crystal molecules 621 are horizontally arranged, the liquid crystal molecules 622 are vertically arranged, and the liquid crystal molecules 623 are obliquely arranged.

In a specific implementation process, in order to enable the controllable optical filter portion to emit light of the second color, the control module applies different voltage values to different positions in the first electrode and the second electrode in the controllable optical filter portion according to the indication information of the second color, so that after the first alignment film and the second alignment film are aligned, different arrangement modes, such as horizontal arrangement, vertical arrangement, inclined arrangement and the like, of liquid crystal molecules at different positions can be controlled, and at this time, the controllable optical filter portion is changed from a non-working state to a working state.

Illustratively, still referring to fig. 6B, when green light of the first color light is not needed, the first color light is not needed to pass through the green filter 624, and at this time, the liquid crystal molecules 621 at the green filter 624 may be adjusted to be horizontally aligned to block the first color light from passing through the green filter 624; when red light of the first color is needed and the reduction of the intensity of the light is not desired, the first color light is needed to pass through the red filter 625, so that the red filter 625 filters the first color light, absorbs other colors of the first color light, and transmits the red light of the first color light, and at this time, the liquid crystal molecules 622 at the red filter 625 are adjusted to be vertically aligned to allow the first color light to pass through the red filter 625; when yellow light of the first color is required and the reduction of the intensity of light is desired, it is necessary that a part of the light of the first color passes through the yellow filter 626, so that the yellow filter 626 filters the light of the first color, absorbs light of other colors of the light of the first color, and transmits the yellow light of the first color, and at this time, the liquid crystal molecules 623 at the yellow filter 626 can be adjusted to be in an inclined arrangement.

Specifically, referring to fig. 6C, first, after the light source emits the light 631 of the first color, the light 631 of the first color can be directed to the first filter layer. Secondly, when the light 631 of the first color enters the first polarizer, the first polarizer adjusts the incident angle of the light 631 of the first color, so that most of the light 6311 of the light of the first color is emitted to the light-transmitting portion 432 after the light of the first color passes through the first glass substrate, and since the light-transmitting portion 432 can transmit light, most of the light 6311 can be emitted from the light-transmitting portion 432, and then passes through the first electrode and the first alignment film and enters the liquid crystal layer; on the other hand, a small portion of the light ray 6312 of the light of the first color is incident on the first light-shielding portion 431, and the first light-shielding portion 431 can block light, so that the small portion of the light ray 6312 cannot pass through the light-shielding portion. Then, the light 6311a of the first color incident on the obliquely and vertically aligned liquid crystal molecules passes through the obliquely and vertically aligned liquid crystal molecules, passes through the second alignment film and the second electrode, and enters the corresponding color filter; the light 6311b of the first color incident on the horizontally aligned liquid crystal molecules is blocked by the horizontally aligned liquid crystal molecules and cannot enter the corresponding color filter. Then, the color filter filters the incident first color light 6311a, allowing the second color light 632 of the incident light of the first color light 6311a to pass through the color filter, so as to obtain the second color light 632. Finally, the light of the second color emitted from the color filter is emitted into the glass substrate, and then is emitted into the polarizer through the glass substrate, and the emission angle of the light of the second color is adjusted by the polarizer, so that the light 632 of the second color is converged and then is emitted into the air. Therefore, the control module controls the controllable light filtering part to filter the light of the first color, and obtains and emits the light of the second color.

In practical application, because the voltage is applied to the controllable light filtering part through the control module firstly, liquid crystal molecules behind different color filters deflect to different degrees, the light intensity and the light angle of the light of the first color are changed through the liquid crystal molecules, and finally the light of the first color is filtered through the color filters to obtain and emit the light of the second color.

As can be seen from the above, in this embodiment, when light of different colors needs to be generated, the control module controls the light source to emit light of the first color, and when the light of the first color enters the controllable optical filter portion, the control module controls the controllable optical filter portion to filter the light of the first color based on the indication information of the second color, so as to obtain and emit light of the second color. In this way, since the light of the first color is filtered by the controllable filter portion and the light of the second color is emitted, it is possible to provide light with rich colors when only a single light emitting diode is used as a light source, and the variety of colors of the light emitted by the light emitting device is greatly enriched.

Example two

Based on the above embodiment, in order to enhance the intensity of the light of the first color incident on the controllable optical filter portion, the light emitting device further includes an optical portion, which is capable of changing the optical path to reflect the portion of the light of the first color emitted by the light source, which is not emitted to the controllable optical filter portion, to the controllable optical filter portion.

Then, fig. 7A is a schematic structural diagram of a light emitting device according to a second embodiment of the present invention, and referring to fig. 7A, the light emitting device further includes: an optical unit 71, the inner wall of which faces the light source and which is capable of reflecting light of the first color; the outer wall of the optical part is light-tight.

In practical applications, the optical portion may be a plane mirror or a concave mirror, and of course, other optical components capable of changing an optical path, such as a trapezoidal plane mirror group with an opening, etc., may also be used.

Further, in order to reflect the light of the first color more and reduce the divergence of the light of the first color emitted by the light source, referring to fig. 7B, the end of the optical part is connected with the controllable optical filter part to form an accommodating cavity; the light source is accommodated in the accommodating cavity.

Preferably, as shown in fig. 7C, the optical portion may be a concave mirror 72 having an inner wall capable of converging the light of the first color emitted by the light source to enhance the intensity of the light of the first color incident on the controllable optical filter portion.

Specifically, still referring to fig. 2, in the absence of a concave mirror in the light-emitting device, the light 211 of the first color emitted by the light source comprises: directed towards the first part 2111 of the controllable filter portion and towards the second part 2112 of the air, which results in a reduced light intensity of the light of the first color entering the controllable filter portion, since a part of the light 2112 of the first color does not enter the controllable filter portion. Further, still referring to fig. 7C, in the case where there is a concave mirror in the light-emitting device, the light 211 of the first color emitted by the light source includes: directed towards the first part 2111 of the controllable filter portion and towards the second part 73 of the concave mirror, wherein the intensity of the light of the first color entering the controllable filter portion is enhanced because the part of the light 73 of the first color not entering the controllable filter portion does not disappear directly but is condensed by the concave mirror and re-reflected to the controllable filter portion.

As can be seen from the above, in the present embodiment, the optical portion in the light emitting device can reflect the part of the first color light emitted by the light source, which is not emitted to the controllable optical filter portion, so that the light intensity of the first color light emitted to the controllable optical filter portion can be enhanced, and thus, the controllable optical filter portion can emit the bright second color light after filtering the first color light, thereby improving the user experience.

EXAMPLE III

Based on the foregoing embodiments, an embodiment of the present invention further provides an electronic device, in which the light-emitting device in the foregoing embodiments is adopted to generate light with rich colors, so as to meet the increasing light supplement requirements of users. In practical applications, the electronic device may be a smart phone, a tablet computer, a smart watch, a notebook computer, a desktop computer, a digital camera, or the like.

First, the structure of the electronic apparatus is described.

Then, fig. 8 is a schematic structural diagram of an electronic device in a third embodiment of the present invention, and referring to fig. 8, the electronic device at least includes: a processing module 81 and the light emitting device 82 in the foregoing embodiments;

the processing module 81 is configured to obtain a light emitting instruction, where the light emitting instruction is used to instruct the light emitting device to emit light of a second color, and carries indication information of the second color; sending a light emitting instruction to the control module 23; a control module 23, configured to execute a light emitting instruction to control the light source 21 to generate light 211 of a first color, where the light of the second color is different from the light of the first color; based on the instruction information, the controllable optical filter portion 22 is controlled to filter the light 211 of the first color, obtain and emit light 221 of the second color.

Specifically, the above-mentioned light emission instruction may be directly generated by a user operation, such as turning on the lighting function by the user in dark. Of course, the interface may also be generated in other manners, for example, when the interface is generated by a third-party application call and is switched from another user graphical interface to the camera application, and here, the embodiment of the present invention is not particularly limited.

Here, the indication information of the second color may be generated by default by the system, or may be set by the user, for example, the user selects on the user color selection user interface, where the embodiment of the present invention is not specifically limited herein.

In practical applications, the Processing module in the electronic device may be implemented by a Central Processing Unit (CPU), an MPU, a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.

It should be noted that the structure of the light emitting device herein is the same as the structure of the light emitting device in one or more embodiments described above, and those skilled in the art can implement the structure of the light emitting device by referring to the description of the structure of the light emitting device in the foregoing embodiments, and redundant description of the structure of the light emitting device in this embodiment is not repeated here.

Next, the operation of the electronic device emitting light of the second color will be described.

When the light emitting device emits light of the second color, the processing module may send a light emitting instruction to the control module, where the light emitting instruction is used to instruct the light emitting device to emit light of the second color and carries indication information of the second color, and after the control module obtains the light emitting instruction, the control module may control the light source to generate light of the first color.

It should be noted that the process of the light emitting device emitting the light of the second color is consistent with the process of the light emitting device emitting the light of the second color in one or more embodiments described above, and those skilled in the art can implement the process of the light emitting device emitting the light of the second color with reference to the description of the foregoing embodiment, and redundant description of the process of the light emitting device emitting the light of the second color in this embodiment is not repeated here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A light-emitting device, characterized in that the light-emitting device comprises at least: the controllable light filtering part comprises a light source, a controllable light filtering part and a control module, wherein the controllable light filtering part is opposite to the light source, the control module is respectively electrically connected with the light source and the controllable light filtering part, the controllable light filtering part comprises a second filtering layer,

the light source is used for generating light of a first color, wherein the light of the first color is composite light capable of generating dispersion;

the controllable light filtering part is used for filtering the light of the first color through the light filtering part of the second filter layer to obtain and emit light of a second color, wherein the light of the second color is different from the light of the first color in color; the light filtering part is a color light filter;

the control module is used for obtaining a light-emitting instruction, wherein the light-emitting instruction carries the indication information of the second color; executing the light-emitting instruction to control the light source to emit light; controlling the controllable filtering part to filter light based on the indication information;

the light emitting device further includes: the inner wall of the optical part is opposite to the light source and can reflect the light of the first color so as to enhance the light intensity of the light of the first color; the outer wall of the optical part is light-tight.

2. The lighting device according to claim 1, wherein the controllable filter includes: the first filter layer, the liquid crystal layer and the second filter layer are sequentially connected in a laminated manner; the first filter layer includes at least: a first electrode and a first alignment film; the second filter layer includes at least: a second electrode and a second alignment film;

the control module is used for generating a corresponding electric control signal based on the indication information; transmitting the electric control signal to the first electrode and the second electrode, and applying a voltage to the liquid crystal layer through the first electrode and the second electrode; the first alignment film and the second alignment film are used for aligning the liquid crystal in the liquid crystal layer after the first electrode and the second electrode apply voltage to the liquid crystal layer so as to control the liquid crystal in the liquid crystal layer to regularly deflect; the liquid crystal layer is configured to regularly refract the light of the first color when the light of the first color enters the liquid crystal layer.

3. The light-emitting device according to claim 2, wherein the first filter layer further comprises: the glass substrate comprises a first glass substrate, a first polarizing plate and a first grid plate, wherein the first polarizing plate is arranged on the upper surface of the first glass substrate, and the first grid plate is arranged on the lower surface of the first glass substrate; wherein,

the first grid plate comprising: the light-emitting device comprises a first light shielding part and a light-transmitting part, wherein the light-transmitting value of the first light shielding part is a first value, the light-transmitting value of the light-transmitting part is a second value, and the second value is larger than the first value;

when the light of the first color enters the first filter layer, the first polarizing plate can adjust the incident angle of the light of the first color so that the light of the first color can penetrate through the first glass substrate and enter the light-transmitting part; when the light of the first color is emitted from the light transmitting portion, the light of the first color can transmit through the first electrode and the first alignment film and enter the liquid crystal layer.

4. The light-emitting device according to claim 3, wherein the second filter layer further comprises: the second glass substrate, a second grid plate arranged on the upper surface of the second glass substrate and a second polarizing plate arranged on the lower surface of the second glass substrate; wherein,

the second grid plate includes: a second light shielding portion having a light transmission value equal to the first value and having a shape corresponding to the shape of the first light shielding portion; the position of the light filter part corresponds to the position of the light transmission part;

when the light of the first color is emitted from the liquid crystal layer, passes through the second electrode and the second alignment film, and enters the optical filter part, the optical filter part can filter the light of the first color to obtain and emit light of the second color; when the light of the second color is emitted from the filter and enters the second polarizing plate, the second polarizing plate can adjust the emission angle of the light of the second color to converge the light of the second color.

5. The light-emitting device according to claim 4, wherein the first shading part is a grid-shaped frame formed by crossing the first grid bars; the light transmission part is a gap formed by the first grid bars crossing each other;

the second shading part is a grid-shaped frame formed by mutually crossing second grid bars; the light filter part is a color filter arranged in a gap formed by the second grid bars crossing each other.

6. The lighting device as claimed in claim 1, wherein the end of the optical portion is connected to the controllable optical filter portion to form a receiving cavity; the light source is accommodated in the accommodating cavity.

7. The lighting device as defined in claim 6, wherein the optical portion is a concave mirror.

8. The illumination device of claim 1, wherein the light source is a white light emitting diode and the light of the first color is white light.

9. An electronic device, characterized in that the electronic device comprises at least: a processing module and a light emitting device according to any one of claims 1 to 8,

the processing module is configured to obtain a light emitting instruction, where the light emitting instruction is used to instruct the light emitting device to emit light of a second color, and carries indication information of the second color; sending the light emitting instruction to the control module;

the control module is used for executing the light-emitting instruction and controlling the light source to generate light of a first color, wherein the color of the light of the first color is different from that of the light of the second color; and controlling the controllable light filtering part to filter the light of the first color based on the indication information to obtain and emit the light of the second color.