WO2017166655A1 - 一种微投影装置 - Google Patents

一种微投影装置 Download PDF

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Publication number
WO2017166655A1
WO2017166655A1 PCT/CN2016/097020 CN2016097020W WO2017166655A1 WO 2017166655 A1 WO2017166655 A1 WO 2017166655A1 CN 2016097020 W CN2016097020 W CN 2016097020W WO 2017166655 A1 WO2017166655 A1 WO 2017166655A1
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Prior art keywords
signal
bridge chip
module
central processing
hdmi
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Ceased
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PCT/CN2016/097020
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English (en)
French (fr)
Inventor
王海华
罗汉英
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Le Holdings Beijing Co Ltd
Leshi Zhixin Electronic Technology Tianjin Co Ltd
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Le Holdings Beijing Co Ltd
Leshi Zhixin Electronic Technology Tianjin Co Ltd
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Publication of WO2017166655A1 publication Critical patent/WO2017166655A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut

Definitions

  • the present invention relates to the field of projection technology, for example, to a micro-projection device.
  • China's digital TV mainly consists of cable digital TV, terrestrial digital TV, satellite digital TV, and network TV.
  • HDMI High Definition Multimedia Interface
  • the inventors have found that in the related art, the method of connecting a set-top box to a television for watching video has a large power consumption and is not easy to carry, and is inconvenient in some training, classroom, business, and the like.
  • the embodiment of the present invention provides a micro-projection device, which can input an HDMI signal output by a set-top box and an external HDMI signal through a bridge chip for people to watch video, has low power consumption, and is convenient to carry.
  • Embodiments of the present invention provide a micro projection apparatus including a central processing unit, a bridge chip, and a projection module;
  • the central processor is configured to convert the input digital signal into an HDMI signal, and send the HDMI signal to the bridge chip;
  • the bridge chip is respectively connected to the central processing unit and the projection module, configured to convert the received HDMI signal into a video signal, and send the video signal to the projection module;
  • the projection module is configured to receive a video signal sent by the bridge chip, convert the video signal into an image, and display the image.
  • the bridge chip is further configured to convert the received HDMI signal into an audio signal, and send the audio signal to the central processor;
  • the central processor is further configured to modulate the received audio signal and output the modulated audio signal.
  • the device also includes a sound processing chip
  • the bridge chip is further configured to convert the received HDMI signal into an audio signal, and send the audio signal to a sound processing chip;
  • the sound processing chip is configured to modulate the received audio signal and output the modulated audio signal.
  • the apparatus also includes an audio device configured to restore the audio signal modulated by the central processing unit or the sound processing chip to sound and play.
  • the bridge chip includes a first HDMI interface and a second HDMI interface, the first HDMI interface is configured to be connected to the central processor, and the second HDMI interface is configured to be connected to an external storage device;
  • the bridge chip is further configured to control the first HDMI interface or the second HDMI interface to be turned on to input an HDMI signal from a central processing unit or an external storage device.
  • the device also includes a DC power source coupled to the bridge chip and configured to power the bridge chip.
  • the central processor is further configured to receive a control signal and send the control signal to the bridge chip;
  • the bridge chip is further configured to receive a control signal sent by the bridge chip, and send the control signal to the projection module;
  • the projection module is further configured to receive the control signal and perform a corresponding operation according to the control signal.
  • the control signal is any one of a start-up and a shutdown signal of the projection module, a brightness adjustment signal, and a white balance adjustment signal.
  • the projection module includes a central processing submodule and a optomechanical module
  • the central processing sub-module is configured to convert a video signal sent by the bridge chip into an analog signal for driving the optical module, and send the analog signal to the optical module;
  • the optomechanical module is connected to the central processing submodule, configured to convert the received analog signal into a driving signal, and adjust a ratio of red, blue, and green light according to the driving signal, and adjust the adjusted red light and blue light. Mix with green light to form an image.
  • the device also includes an optical sensor and/or a temperature sensor;
  • the optical sensor is configured to detect a brightness of the light of the external environment, and send the detected optical signal to the central processing sub-module;
  • a temperature sensor configured to detect a temperature inside the projection module and send the detected temperature signal to the central processing sub-module
  • the central processing sub-module is configured to send the received optical signal and/or temperature signal to the central processor through the bridge chip, so that the central processor adjusts and monitors the projection module
  • the micro-projection device provided by the embodiment of the invention can input the HDMI signal output by the central processing unit in the set top box and the HDMI signal of the external device through the bridge chip, and convert the input HDMI signal into a video signal through the projection module.
  • the video signal is converted into an image for people to watch the video, and the power consumption is small and portable.
  • FIG. 1 is a block diagram showing the structure of a micro-projection device according to Embodiment 1 of the present invention.
  • FIG. 2 is a block diagram showing the structure of a micro-projection device according to Embodiment 2 of the present invention.
  • FIG. 3 is a structural block diagram of a projection module according to Embodiment 2 of the present invention.
  • FIG. 1 is a structural block diagram of a micro-projection apparatus according to a first embodiment of the present invention, wherein a single arrow in FIG. 1 indicates the direction of a signal, and a hollow arrow indicates a direction of a video resource input to a central processing unit.
  • the projection apparatus includes a central processing unit 110, a bridge chip 120, and a projection module 130.
  • the central processing unit 110 is configured to convert the input digital signal into an HDMI signal, and send the HDMI signal to the bridge chip 120.
  • the central processing unit 110 is disposed in the set top box.
  • the model of the central processing unit 110 may be S812 model.
  • the bridge chip 120 is connected to the central processing unit 110 and the projection module 130, respectively, and configured to convert the received HDMI signal into a video signal and transmit the video signal to the projection module 130.
  • the projection module 130 is configured to receive the video signal sent by the bridge chip 120, convert the video signal into an image, and display the image.
  • the bridge chip 120 is further configured to convert the received HDMI signal into an audio signal, and send the audio signal to the central processing unit 110;
  • the central processing unit 110 is further configured to modulate the received audio signal and output the modulated audio signal.
  • the modulation of the audio signal includes parameters such as the phase, amplitude, and frequency of the audio signal, so as to conform to the input parameters of the external audio device.
  • the video resources from the network or the video resources of other channels are often digital signals, and the digital signals of the video resources are input into the central processing unit 110 in the set top box, and the digital signals are converted by the central processing unit 110.
  • the central processing unit 110 transmits the converted HDMI signal to the bridge chip 120, the bridge chip 120 converts the HDMI signal into a video signal and an audio signal, and transmits the video signal and the audio signal to the projection module 130 and the central processing unit, respectively. 110.
  • the projection module 130 converts the video signal into an image for display, and the central processor 110 modulates the audio signal and outputs the audio signal, so that the projector can view the video through the projection module 130, and the audio signal passes through
  • the central processing unit 110 modulates and outputs it to an external audio device.
  • the HDMI signal outputted by the central processing unit 110 in the set top box is converted into a video signal by the bridge chip 120, and the video can be viewed through the projection module 130, compared with the manner in which the HDMI signal output by the set top box in the related art is input to the television to watch the video. It saves power consumption and is small in size and easy to carry.
  • the embodiment provides a micro-projection device, which can input an HDMI signal output by a central processing unit in a set-top box through a bridge chip, convert the HDMI signal into a video signal, and convert the video signal into an image through a projection module for the people. Watch the video, power consumption is small, and easy to carry.
  • FIG. 2 is a structural block diagram of a micro-projection device according to Embodiment 2 of the present invention. As shown in FIG. 2, the micro-projection device includes a central processing unit 210, a bridge chip 220, and a projection module 230.
  • the sound processing chip 240 and the audio device 250 are further included; the bridge chip 220 is further configured to convert the received HDMI signal into an audio signal, and send the audio signal to the sound processing chip 240; the sound processing chip 240, configured to modulate the received audio signal and output the modulated audio signal.
  • the audio device 250 is configured to restore the audio signal modulated by the central processing unit 210 or the sound processing chip 240 to sound and play.
  • the bridge chip 220 can transmit the converted audio signal to the central processing unit 210, and the audio signal is modulated by the central processing unit 210.
  • the bridge chip 220 can also transmit the converted audio signal to the sound processing chip 240.
  • the audio signal is modulated by the sound processing chip 240. If the audio processing chip 240 is used to modulate the audio signal, the requirement for the central processing unit 210 may be relatively low, and whether or not the sound processing chip 240 is set may be selected according to actual conditions.
  • the bridge chip 220 includes a first HDMI interface 211 and a second HDMI interface 212.
  • the first HDMI interface 211 is configured to be connected to the central processing unit 210, and the second HDMI interface 212 is configured.
  • the bridge chip 220 is also configured to control the first HDMI interface 211 or the second HDMI interface 212 to be turned on to input an HDMI signal from the central processing unit 210 or an external storage device 260.
  • the video resource of the external storage device 260 or other channels is an HDMI signal
  • it can be directly input to the bridge chip 220, and the HDMI signal is projected by the bridge chip 220 and the HDMI input by the central processing unit 210.
  • the projection method of the signal is the same. Therefore, by bridging the chip 220, the HDMI signals from the external storage device 260 and the central processing unit 210 in the set top box can be converted to realize viewing of video resources from different paths.
  • the bridge chip More HDMI interfaces can be set up on the 220 to connect with more external storage devices.
  • the micro-projection device further includes a DC power source 270, and the DC power source 270 is connected to the bridge chip 220 and configured to supply power to the bridge chip 220.
  • the DC power source 270 can be a DC battery.
  • the central processing unit and the projection module in the set-top box are powered by an external AC power source.
  • the external AC power converts the input AC power signal into a DC signal through a voltage conversion circuit in the adapter, and then inputs the DC signal into the central processor to supply power to the central processing unit.
  • the power supply principle of the projection module is the same as that of the central processing unit.
  • the central processing unit 210 is further configured to receive a control signal and send the control signal to the bridge chip 220.
  • the bridge chip 220 is further configured to receive the control signal sent by the bridge chip 220, and send the control signal.
  • the projection module 230 is further configured to receive a control signal and perform a corresponding operation according to the control signal.
  • the control signal is any one of a start-up and a shutdown signal of the projection module 230, a brightness adjustment signal, and a white balance adjustment signal.
  • the central processing unit can receive parameters such as brightness and white balance of the projection module by receiving a control signal from an external remote controller or a control signal obtained by a button.
  • the projection module 230 includes a central processing sub-module 231 and a optomechanical module 232.
  • the central processing sub-module 231 is configured to convert the video signal sent by the bridge chip 220 into an analog signal for driving the optomechanical module 232. And transmitting the analog signal to the optical module 232; the optical module 232 is connected to the central processing sub-module 231, configured to convert the received analog signal into a driving signal, and adjust red, blue, and green light according to the driving signal. The ratio of the adjusted red, blue and green light to form an image.
  • the optomechanical module 232 is composed of three light sources, a color wheel assembly 2321, a driving circuit 2322, a digital micro mirror chip 2323, a lens 2324, and the like.
  • the three light sources are respectively a red light source 2325, a green light source 2326 and a blue light source 2327;
  • the digital micro mirror chip has a plurality of tiny lenses, and the deflection angles of the plurality of tiny lenses are performed by a control module on the digital micro mirror chip. control.
  • the central processing sub-module 231 converts the received video signal into an analog signal
  • the drive circuit 2322 converts the analog signal into a drive signal.
  • the driving signals can be classified into three types, wherein the first control signal controls the light emission of the red light source 2325, the green light source 2326, the blue light source 2327, and the light emission luminance.
  • the second driving signal is used to control the motor in the color wheel assembly 2321 to control the rotation speed of the color wheel to adjust the ratio of red light, blue light and green light.
  • Third drive signal for adjusting the number The angles of the respective minute lenses on the micro mirror chip 2323 modulate the mixed light of red, blue, and green light into an image beam, and display an image through the lens 2324.
  • a control module (not shown) on the digital micro mirror chip can adjust the angle of each minute lens according to the received third driving signal.
  • the value indicates that the embodiment of the present invention exemplarily adopts the structure of the projection module shown in FIG. 3 to describe the projection process, but the projection module does not only include the optical component shown in FIG. 3, and the projection module shown in FIG.
  • the structure is just an example, and the projection module also includes other optical components, such as a light splitting device, a mirror, and the like.
  • the structure of the projection module is set according to actual needs.
  • the micro-projection device further includes an optical sensor 280 and/or a temperature sensor 290.
  • the optical sensor 280 is configured to detect the brightness of the external environment and send the detected optical signal to the central processing sub-module 231.
  • the temperature sensor 290 is configured to detect the temperature inside the projection module 230 and detect the temperature signal.
  • the central processing sub-module 231 is configured to send the received optical signal and/or temperature signal to the central processing unit 210 through the bridge chip 220 to enable the central processing unit 210 to adjust the projection module 230. monitor.
  • the optical sensor 280 can enable the central processing unit 210 to adjust the brightness of the projection module 230, and the temperature of the interior of the projection module 230 is detected by the temperature sensor 290, so that the central processing unit 210 can monitor the projection module 230 in real time, thereby avoiding the internal high of the projection module 230.
  • the condition of the component damage can be applied.
  • the micro-projection device provided by the embodiment of the invention adds the function of the bridge chip based on the first embodiment, and can input the HDMI signal of the external storage device or the HDMI signal of the central control output; the sound processing chip is added.
  • the power consumption of the central processing unit can be reduced; the projection module is optimized and optical sensors and temperature sensors are added to adjust and monitor the projection device.
  • the micro-projection device of the present application can input the HDMI signal output by the set-top box and the external HDMI signal through the bridge chip, so that people can watch the video, the power consumption is small, and the carrying is convenient.

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  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Projection Apparatus (AREA)

Abstract

本发明公开了一种微投影装置，属于投影技术领域，包括中央处理器、桥接芯片和投影模块；所述中央处理器，配置为将输入的数字信号转换成HDMI信号，并将所述HDMI信号发送给所述桥接芯片；所述桥接芯片分别与中央处理器和投影模块连接，配置为将接收的HDMI信号转换成视频信号，并将所述视频信号发送给所述投影模块；所述投影模块，配置为接收所述桥接芯片发送的视频信号，将所述视频信号转换成图像，并将所述图像进行显示。本发明通过桥接芯片能够将机顶盒输出的HDMI信号以及外部的HDMI信号进行输入，供人们观看视频，功耗小，且携带方便。

Description

一种微投影装置
本申请要求在2016年03月30日提交中国专利局、申请号为2016101914095、公开名称为“一种微投影装置”的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本发明涉及投影技术领域，例如涉及一种微投影装置。
背景技术
随着技术的日益发展，现已经进入了由模拟电视向数字电视跨越的时代，目前，我国数字电视主要由有线数字电视、地面数字电视、卫星数字电视、网络电视等。当人们通过不同的渠道观看电视时，需要通过机顶盒将数字信号转换成HDMI(High Definition Multimedia Interface，高清晰度多媒体接口)信号，然后输入到电视机中才能观看视频。
但是在实现本发明过程中，发明人发现相关技术中：将机顶盒连接电视机进行观看视频的方式，功耗较大，且不易携带，在一些培训、课堂、商务等场合往往会造成不便。
发明内容
有鉴于此，本发明实施例提供一种微投影装置，通过桥接芯片能够将机顶盒输出的HDMI信号以及外部的HDMI信号进行输入，供人们观看视频，功耗小，且携带方便。
本发明实施例提供了一种微投影装置，包括中央处理器、桥接芯片和投影模块；
所述中央处理器，配置为将输入的数字信号转换成HDMI信号，并将所述HDMI信号发送给所述桥接芯片；
所述桥接芯片分别与中央处理器和投影模块连接，配置为将接收的HDMI信号转换成视频信号，并将所述视频信号发送给所述投影模块；
所述投影模块，配置为接收所述桥接芯片发送的视频信号，将所述视频信号转换成图像，并将所述图像进行显示。
所述桥接芯片，还配置为将接收的所述HDMI信号转换成音频信号，并将所述音频信号发送给所述中央处理器；
所述中央处理器，还配置为将接收的所述音频信号进行调制，并将调制后的音频信号进行输出。
所述装置还包括声音处理芯片；
所述桥接芯片，还配置为将接收的所述HDMI信号转换成音频信号，并将所述音频信号发送给声音处理芯片；
所述声音处理芯片，配置为对接收到的所述音频信号进行调制，并将调制后的音频信号进行输出。
所述装置还包音响设备，配置为将中央处理器或声音处理芯片调制的音频信号还原成声音并播放。
所述桥接芯片包括第一HDMI接口和第二HDMI接口，所述第一HDMI接口配置为与所述中央处理器连接，所述第二HDMI接口配置为与外部的存储设备连接；
所述桥接芯片还配置为控制所述第一HDMI接口或所述第二HDMI接口接通，以从中央处理器或外部的存储设备输入HDMI信号。
所述装置还包括直流电源，所述直流电源与所述桥接芯片连接，配置为给所述桥接芯片供电。
所述中央处理器，还配置为接收控制信号，并将所述控制信号发送所述桥接芯片；
所述桥接芯片，还配置为接收桥接芯片发送的控制信号，并将所述控制信号发送给投影模块；
所述投影模块，还配置为接收所述控制信号，根据所述控制信号执行相应的操作。
所述控制信号为投影模块的启动、关闭信号、亮度调整信号以及白平衡调整信号中的任意一种。
所述投影模块包括中央处理子模块和光机模组；
所述中央处理子模块，配置为将所述桥接芯片发送的视频信号转换成驱动所述光机模组的模拟信号，并将所述模拟信号发送给所述光机模组；
所述光机模组与所述中央处理子模块连接，配置为将接收的模拟信号转换成驱动信号，并根据驱动信号调节红光、蓝光和绿光的比例，将调整后的红光、蓝光和绿光混合形成图像。
所述装置还包括光学传感器和/或温度传感器；
所述光学传感器，配置为检测外部环境的光线亮度，并将检测到的光信号发送给中央处理子模块；
温度传感器，配置为检测投影模块内部的温度，并将检测到温度信号发送给中央处理子模块；
所述中央处理子模块，配置为将接收的光信号和/或温度信号通过所述桥接芯片发送给所述中央处理器，以使中央处理器对投影模块进行调整和监测
本发明实施例提供的一种微投影装置，通过桥接芯片能够将机顶盒中的中央处理器输出的HDMI信号以及外部设备的HDMI信号进行输入，并将输入的HDMI信号转换成视频信号，通过投影模块将视频信号转换成图像，供人们观看视频，功耗小，且携带方便。
附图概述
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本发明实施例一提供的一种微投影装置的结构框图；
图2是本发明实施例二提供的一种微投影装置的结构框图；以及
图3是本发明实施例二提供的投影模块的结构框图。
本发明的实施方式
下面结合附图和实施例对本发明进行详细说明。可以理解的是，此处所描述的实施例仅仅用于解释本发明，而非对本发明的限定。另外，为了便于描述，附图中仅示出了与本发明相关的部分而非全部内容。
实施例一
图1是本发明实施例一提供的一种微投影装置的结构框图，其中，图1中单箭头表述信号的方向，空心箭头表述输入到中央处理器中的视频资源的方向。如图1所示，所述的投影装置，包括中央处理器110、桥接芯片120和投影模块130。
其中，中央处理器110，配置为将输入的数字信号转换成HDMI信号，并将HDMI信号发送给桥接芯片120；其中，中央处理器110设置在机顶盒中，例如，中央处理器110的型号可以为S812型号。
桥接芯片120分别与中央处理器110和投影模块130连接，配置为将接收的HDMI信号转换成视频信号，并将视频信号发送给投影模块130。
投影模块130，配置为接收桥接芯片120发送的视频信号，将视频信号转换成图像，并将图像进行显示。
在上述实施例的基础上，桥接芯片120，还配置为将接收的HDMI信号转换成音频信号，并将音频信号发送给中央处理器110；
中央处理器110，还配置为将接收的音频信号进行调制，并将调制后的音频信号进行输出。其中，音频信号的调制包括可音频信号的相位、振幅、频率等参数进行调制，使之符合外部的音响设备的输入参数。
本实施例的工作过程如下：来自于网络的视频资源或者其他渠道的视频资源往往是数字信号，视频资源的数字信号输入到机顶盒中的中央处理器110中，通过中央处理器110将数字信号转换成HDMI信号，中央处理器110将转换的HDMI信号发送给桥接芯片120，桥接芯片120将HDMI信号转换成视频信号和音频信号，并将视频信号和音频信号分别发送给投影模块130和中央处理器110，投影模块130将视频信号转换成图像进行显示，中央处理器110将音频信号调制后进行输出，这样人们可以通过投影模块130可以观看视频，音频信号通过 中央处理器110调制后输出给外部的音响设备。通过桥接芯片120将机顶盒中的中央处理器110输出的HDMI信号转换成视频信号，通过投影模块130就可以观看视频，与相关技术中的机顶盒输出的HDMI信号输入到电视观看视频的方式相比，节省了功耗，且体积小，携带方便。
本实施例提供了一种微投影装置，通过桥接芯片能够将机顶盒中的中央处理器输出的HDMI信号进行输入，并将HDMI信号转换成视频信号，通过投影模块将视频信号转换成图像，供人们观看视频，功耗小，且携带方便。
实施例二
图2是本发明实施例二提供的一种微投影装置的结构框图，如图2所示，所述的微投影装置包括中央处理器210、桥接芯片220和投影模块230。
在上述实施例的基础上，还包括声音处理芯片240和音响设备250；桥接芯片220，还配置为将接收的HDMI信号转换成音频信号，并将音频信号发送给声音处理芯片240；声音处理芯片240，配置为对接收到的音频信号进行调制，并将调制后的音频信号进行输出。音响设备250，配置为将中央处理器210或声音处理芯片240调制的音频信号还原成声音并播放。
因此，桥接芯片220可以将转换成的音频信号发送给中央处理器210，由中央处理器210进行对音频信号进行调制，或者，桥接芯片220也可以将转换成的音频信号发送给声音处理芯片240，由声音处理芯片240对音频信号进行调制。如果采用声音处理芯片240对音频信号进行调制的方法，对中央处理器210的要求会相对较低，可以根据实际情况选择是否设置声音处理芯片240。
在上述实施例的基础上，如图2所示，桥接芯片220包括第一HDMI接口211和第二HDMI接口212，第一HDMI接口211配置为与中央处理器210连接，第二HDMI接口212配置为与外部的存储设备260连接；桥接芯片220还配置为控制第一HDMI接口211或第二HDMI接口212接通，以从中央处理器210或外部的存储设备260输入HDMI信号。
在本实施例中，如果在外部的存储设备260或其他渠道的视频资源是HDMI信号，可以直接输入到桥接芯片220，HDMI信号通过桥接芯片220进行投影的方法与由中央处理器210输入的HDMI信号的投影方法是相同的。因此通过桥接芯片220，可以将来自于外部的存储设备260以及机顶盒中中央处理器210的HDMI信号进行转换，以实现观看来自于不同途径的视频资源。其中，桥接芯片 220上还可以设置更多的HDMI接口，以与更多的外部存储设备连接。
在上述实施例的基础上，所述的微投影装置还包括直流电源270，直流电源270与桥接芯片220连接，配置为给桥接芯片220供电。在本实施中，直流电源270可以为直流电池。对于机顶盒中的中央处理器和投影模块均采用外部的交流电源进行供电。外部的交流电通过适配器中的电压转换电路将输入的交流的电源信号转换成直流信号，然后将直流信号输入到中央处理器中，以实现对中央处理器的供电。同理，投影模块的供电原理与中央处理器的供电原理相同。
在上述实施例的基础上，中央处理器210，还配置为接收控制信号，并将控制信号发送桥接芯片220；桥接芯片220，还配置为接收桥接芯片220发送的控制信号，并将控制信号发送给投影模块230；投影模块230，还配置为接收控制信号，根据控制信号执行相应的操作。其中，控制信号为投影模块230的启动、关闭信号、亮度调整信号以及白平衡调整信号中的任意一种。中央处理器可以接收来自外部遥控器发出的控制信号或者通过按键获得的控制信号，对投影模块的亮度、白平衡等参数进行调节。
在上述实施例的基础上，投影模块230包括中央处理子模块231和光机模组232；中央处理子模块231，配置为将桥接芯片220发送的视频信号转换成驱动光机模组232的模拟信号，并将模拟信号发送给光机模组232；光机模组232与中央处理子模块231连接，配置为将接收的模拟信号转换成驱动信号，并根据驱动信号调节红光、蓝光和绿光的比例，将调整后的红光、蓝光和绿光混合形成图像。
在本实施例中，如图3所示，光机模组232由3个光源，色轮组件2321、驱动电路2322、数字微型反射镜芯片2323、镜头2324等组成。其中，3个光源分别为红色光源2325、绿色光源2326和蓝色光源2327；数字微型反射镜芯片有复数个微小镜片组成，复数个微小镜片的偏转角度由数字微型反射镜芯片上的控制模块进行控制。
当投影装置进行投影时，中央处理子模块231将接收的视频信号转换成模拟信号，驱动电路2322将模拟信号转换成驱动信号。驱动信号可以分为3种，其中，第一控制信号控制红色光源2325、绿色光源2326、蓝色光源2327的发光以及发光亮度。第二驱动信号，用于控制色轮组件2321中的马达来进行控制色轮的转速，以调节红光、蓝光和绿光的比例。第三驱动信号，用于调节数字 微型反射镜芯片2323上的各个微小镜片的角度，将红色、蓝光和绿光的混合光调制为影像光束，通过镜头2324显示图像。数字微型反射镜芯片上的控制模块(图中未示出)可以根据接收到的第三驱动信号进行调节各个微小镜片的角度。
值的说明的是，本发明实施例示例性采用图3所示的投影模块的结构进行表述投影的过程，但是投影模块并不是仅仅包括图3所示的光学元件，图3所示的投影模块的结构只是一种示例，投影模块还包括其他的光学组件，例如，分光合光装置，反射镜等。投影模块的结构根据实际的需要进行设置。
在上述实施例的基础上，如图2所示，所述的微投影装置还包括光学传感器280和/或温度传感器290。其中，光学传感器280，配置为检测外部环境的光线亮度，并将检测到的光信号发送给中央处理子模块231；温度传感器290，配置为检测投影模块230内部的温度，并将检测到温度信号发送给中央处理子模块231；中央处理子模块231，配置为将接收的光信号和/或温度信号通过桥接芯片220发送给中央处理器210，以使中央处理器210对投影模块230进行调整和监测。通过光学传感器280能够使中央处理器210调节投影模块230的亮度，通过温度传感器290检测投影模块230内部的温度，使中央处理器210对投影模块230进行实时监控，避免投影模块230内部过高引起的元件损害的情况。
本发明实施例提供的一种微投影装置，在上述实施例一的基础上，增加了桥接芯片的功能，能够输入外部存储设备的HDMI信号或中央控制输出的HDMI信号；增加了声音处理芯片，可以降低中央处理器的功耗；对投影模块进行了优化并增加了光学传感器和温度传感器，可以对投影装置进行调整和监测。
上述仅为本发明的实施例。本领域技术人员会理解，本发明不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本发明的保护范围。因此，虽然通过以上实施例对本发明进行了较为详细的说明，但是本发明不仅仅限于以上实施例，还可以包括更多其他等效实施例，而本发明的范围由所附的权利要求范围决定。
工业实用性
本申请的微投影装置，通过桥接芯片能够将机顶盒输出的HDMI信号以及外部的HDMI信号进行输入，供人们观看视频，功耗小，且携带方便。

Claims (10)

  1. 一种微投影装置，包括中央处理器、桥接芯片和投影模块；
    所述中央处理器，配置为将输入的数字信号转换成HDMI信号，并将所述HDMI信号发送给所述桥接芯片；
    所述桥接芯片分别与中央处理器和投影模块连接，配置为将接收的HDMI信号转换成视频信号，并将所述视频信号发送给所述投影模块；
    所述投影模块，配置为接收所述桥接芯片发送的视频信号，将所述视频信号转换成图像，并将所述图像进行显示。
  2. 根据权利要求1所述的装置，其中，所述桥接芯片，还配置为将接收的所述HDMI信号转换成音频信号，并将所述音频信号发送给所述中央处理器；
    所述中央处理器，还配置为将接收的所述音频信号进行调制，并将调制后的音频信号进行输出。
  3. 根据权利要求1所述的装置，还包括声音处理芯片；
    所述桥接芯片，还配置为将接收的所述HDMI信号转换成音频信号，并将所述音频信号发送给声音处理芯片；
    所述声音处理芯片，配置为对接收到的所述音频信号进行调制，并将调制后的音频信号进行输出。
  4. 根据权利要求2或3所述的装置，还包音响设备，配置为将中央处理器或声音处理芯片调制的音频信号还原成声音并播放。
  5. 根据权利要求1所述的装置，其中，所述桥接芯片包括第一HDMI接口和第二HDMI接口，所述第一HDMI接口配置为与所述中央处理器连接，所述第二HDMI接口配置为与外部的存储设备连接；
    所述桥接芯片还配置为控制所述第一HDMI接口或所述第二HDMI接口接通，以从中央处理器或外部的存储设备输入HDMI信号。
  6. 根据权利要求1-3任一所述的装置，还包括直流电源，所述直流电源与所述桥接芯片连接，配置为给所述桥接芯片供电。
  7. 根据权利要求1所述的装置，其中，所述中央处理器，还配置为接收控 制信号，并将所述控制信号发送所述桥接芯片；
    所述桥接芯片，还配置为接收桥接芯片发送的控制信号，并将所述控制信号发送给投影模块；
    所述投影模块，还配置为接收所述控制信号，根据所述控制信号执行相应的操作。
  8. 根据权利要求7所述的装置，其中，所述控制信号为投影模块的启动、关闭信号、亮度调整信号以及白平衡调整信号中的任意一种。
  9. 根据权利要求1所述的装置，其中，所述投影模块包括中央处理子模块和光机模组；
    所述中央处理子模块，配置为将所述桥接芯片发送的视频信号转换成驱动所述光机模组的模拟信号，并将所述模拟信号发送给所述光机模组；
    所述光机模组与所述中央处理子模块连接，配置为将接收的模拟信号转换成驱动信号，并根据驱动信号调节红光、蓝光和绿光的比例，将调整后的红光、蓝光和绿光混合形成图像。
  10. 根据权利要求9所述的装置，还包括光学传感器和/或温度传感器；
    所述光学传感器，配置为检测外部环境的光线亮度，并将检测到的光信号发送给中央处理子模块；
    温度传感器，配置为检测投影模块内部的温度，并将检测到温度信号发送给中央处理子模块；
    所述中央处理子模块，配置为将接收的光信号和/或温度信号通过所述桥接芯片发送给所述中央处理器，以使中央处理器对投影模块进行调整和监测。
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