CN200997685Y - Liquid-crystal monitor - Google Patents

Liquid-crystal monitor Download PDF

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CN200997685Y
CN200997685Y CN 200620031158 CN200620031158U CN200997685Y CN 200997685 Y CN200997685 Y CN 200997685Y CN 200620031158 CN200620031158 CN 200620031158 CN 200620031158 U CN200620031158 U CN 200620031158U CN 200997685 Y CN200997685 Y CN 200997685Y
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module
display
liquid crystal
circuit
driving
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CN 200620031158
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Chinese (zh)
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郑玉彬
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郑州万迪来电子技术有限公司
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Abstract

A liquid crystal monitor is composed of a power module for providing the sully power for the whole circuit; a control interface module, for receiving user instruction and transferring to the display driver module; a display driver module, for receiving the video signal and transferring to a digital RGB signal, which can be provided for a liquid crystal display module with a synchronous clock signal; a liquid crystal display module, for receiving the external input video signal and displaying on the liquid crystal display panel; an audio amplifying module, for receiving the external input audio signal and amplifying the signal to be replayed in the built-in loudspeaker or on the external connection earphone; an audiofrequency level display module, for receiving the external input aural signal and displaying the electrical level and dynamic change state. The utility model can display the electrical level high-low and dynamic change state in real time, the display of the characteristics of aural signal is visual, and the liquid crystal monitor can directly monitor conveniently and properly, and can know the state of aural signal.

Description

一种液晶监视器 A liquid crystal monitor

技术领域 FIELD

本实用新型涉及一种液晶监视器。 The present invention relates to a liquid crystal monitor.

背景技术 Background technique

目前在摄录现场和演播室中,对音频信号的监控主要通过以下两种方式:通过监视器上内置的扬声器监听或通过外接耳机监听。 Currently in field and studio recording, the monitoring of the audio signal mainly in two ways: through the built-in speaker to listen on a monitor or an external monitor via headphones. 此两种方式所存在的不足主要表现在以下几个方面:其一,操作的便捷性无法保证。 The main symptom of this lack of presence of the two methods in the following areas: First, ease of operation can not be guaranteed. 直接监听音频信号,虽比较直观,但却有诸多不便。 Direct monitoring of the audio signal, although relatively straightforward, but there are a lot of inconvenience. 在现场拍摄中,由于环境条件复杂,扬声器中方的音频往往淹没于环境噪声之中,为监听带来不便。 Taken at the scene, due to complex environmental conditions, China's audio speakers often submerged in the ambient noise, to listen for the inconvenience. 在演播室中若用扬声器监听,多路信号的声音往往混杂在一起,造成难以分辨。 When the speaker in a studio monitor, a sound multiplex signal are often mixed together, making it difficult to distinguish. 扬声器重放的声音有时对安静的监控室也造成了噪声污染。 The speaker playback sound sometimes quiet control room also cause noise pollution. 用耳机监听又不能同时了解多路音频信号的情况。 Listening with headphones can not understand the situation at the same time multi-channel audio signals. 其二:音频信号的特性不能直观地显示出来。 Second: characteristics of the audio signal can not be visually displayed. 使用扬声器监听或通过外接耳机监听,用户只能通过主观听觉判断音量的大小,没有一个客观的标准,不能定量描述。 By using an external speaker or headphone listening monitor, users can only judge by the size of subjective listening volume, there is no objective standard can not be described quantitatively. 扬声器和耳机重放的声音经过了音频放大电路的放大,不能完全体现输入的音频信号的完整信息,对于音频信号的电平高低,更是无从得知,从而导致无法对音频信号电平高低进行调控。 Speaker and headphone playback sound through the amplified audio amplifier circuit, and can not fully reflect the complete information of the audio signal input, for the level of the audio signal level, it is impossible to know, making it impossible to carry out the high and low level audio signal regulation.

实用新型内容针对现有技术所存在的不足,本实用新型的目的在于提供一种可对音频信号电平高低进行监控的液晶监视器。 SUMMARY deficiencies of the prior art for the present, the present invention aims to provide an LCD monitor for monitoring the level of the audio signal level.

为实现上述目的,本实用新型采用如下技术方案:一种液晶监视器,它包括:一控制接口模块,其输出端与显示驱动模块输入端相连接,用于接受用户指令,将指令传给显示驱动模块;一显示驱动模块,其输入端与控制接口模块输出端相连接,其输出端与液晶显示模块输入端相连接,用于接受外部输入的视频信号,并根据控制接口模块的指令将其转换为适合液晶显示模块显示的数字RGB信号,与同步时钟信号一同提供给液晶显示模块;一液晶显示模块,其输入端与显示驱动模块输出端相连接,用于接受显示驱动模块的信号,将其在液晶显示面板上显示;一电源模块,与上述各模块相连接,用于为整机电路提供电源;它还包括一音频电平显示模块,其电源输入端与电源模块相连接,用于接受外部输入的音频信号并显示电平及其动态变化状态。 To achieve the above object, the present invention adopts the following technical solution: A liquid crystal monitor, comprising: a control interface module, an output coupled to the display driving module connected to the input, for receiving a user instruction, the instruction passed to the display driving module; a display driving module, and an input terminal connected to the output control interface module, the output terminal of the liquid crystal display module is connected to the input for receiving an external input video signal, and the control interface module according to an instruction which suitable liquid crystal display module is converted to a digital RGB display signals, together with the synchronization clock signal to the liquid crystal display module; a liquid crystal display module having an input terminal connected to the output display driving module, for receiving a signal of the display driving module, and in which the liquid crystal display panel; a power module, and each module is connected, for supplying power to the whole circuit; further includes an audio level display module, a power supply input which is connected to the power supply module, for receiving an externally input audio signal level and its dynamic change display state.

它还包括一音频放大模块,其输入端与控制接口模块输出端相连接,用于接受外部输入音频信号,放大后在内置扬声器或外接的耳机上重放。 Further comprising an audio amplifier module and a control input connected to the output interface module for receiving an external input audio signal amplified in the reproducing internal speaker or an external headset.

所述的音频电平显示模块由驱动电路和显示电路组成,显示电路与驱动电路输出端相连接,驱动电路接有基准电压电路。 The audio level display module by the driving circuit and display circuit, a display circuit connected to the output of the driving circuit, the driving circuit is connected with reference voltage circuit.

所述的驱动电路可为LED驱动集成电路,相应地,所述的显示电路为分别与LED驱动集成电路不同输出端连接的若干LED。 The drive circuit may be an LED driving integrated circuit, respectively, of the display circuitry respectively several LED LED driving IC connected to different outputs.

所述的LED有LED1~LED10十个,其中LED1~LED5采用绿色LED,LED6~LED8采用黄色LED,LED9~LED10采用红色LED。 The LED has ten LED1 ~ LED10, wherein LED1 ~ LED5 using green LED, LED6 ~ LED8 in yellow LED, LED9 ~ LED10 LED in red.

所述的驱动电路也可为LCD或VFD驱动集成电路,相应地,所述的显示电路为与LCD或VFD驱动集成电路输出端连接的LCD或VFD显示器件。 The drive circuit may be an LCD or VFD driving integrated circuits, respectively, of the display circuitry of the display device is an LCD or VFD or LCD connected to the output of the VFD driving integrated circuit.

所述的基准电压电路的基准电压可调。 A reference voltage of the reference voltage circuit is adjustable.

由于本实用新型设置了音频电平显示模块,它可把电平的高低及其动态变化状态实时地显示出来,音频信号的特性显示直观,克服了用扬声器播放来监控音频信号的噪声干扰问题,监听方便、直观、准确,同时又能了解多路音频信号的情况。 Since the present invention is provided an audio level display module, which can be the low level state and dynamic changes in real time is displayed, the display characteristics of the audio signal directly, to overcome noise interference problems to monitor speaker playing an audio signal, listening easy, intuitive, accurate understanding of the situation while multi-channel audio signals. 同时,显示电平高低还为音频信号的监控提供了客观的标准。 Meanwhile, the display also provides high and low level of objective criteria to monitor the audio signal. 本实用新型可把音频信号采用十级LED显示,可显示30分贝的动态范围,从而更为方便、直观地了解音频信号电平的高低以及动态变化情况。 The present invention may be employed audio signals ten LED display, it can display 30 dB dynamic range to more easily and intuitively understand the dynamics and the level of changes in the audio signal level. 使用高亮度的LED,在明亮的环境中也能清晰地观察到显示的信息。 High brightness LED, can be clearly observed in the information display in a bright environment. 红、黄、绿三色LED标示高、中、低三个等级的音频信号电平,便于对音频信号进行调控,使摄录编播操作过程更加简易,便捷。 Red, yellow, and green LED labeled high, the audio signal level, the three levels low, easy to regulate the audio signal, making the process more simple cameras for multicast operation, and convenient. 同时,满度电平可以根据用户需要定制微调,以适应不同标准的音频信号输入源。 Meanwhile, the full-scale level can be customized according to user needs fine-tuning to suit different standard audio signal input source. 本实用新型还可保留扬声器或耳机接口,用户在使用过程中仍可通过扬声器或耳机监听输入的音频信号。 The present invention also retain a speaker or headphone jack, the user is still in use by a speaker or headphones to listen to the input audio signal. 外形和接口形式与原液晶监视器相兼容,可与普通液晶监视器一样使用。 Interfaces with the original shape and form compatible with the liquid crystal monitor, can be used as ordinary liquid crystal monitor.

附图说明 BRIEF DESCRIPTION

:图1为本实用新型的原理框图;图2为本实用新型中音频电平显示模块的电路原理图。 : FIG. 1 is a block diagram of the principles of the utility; FIG. 2 new audio level circuit block diagram of a display present invention.

具体实施方式 detailed description

如图1所示,本实用新型由电源模块、显示驱动模块、液晶显示模块、音频放大模块和音频电平显示模块、控制接口模块组成;所述电源模块由电源变换芯片及外围元件构成;所述显示驱动模块由视频转换芯片和液晶驱动芯片组成;所述液晶显示模块由TFT液晶显示面板和驱动单元组成;所述音频放大模块由音频放大芯片、扬声器、耳机组成;所述音频电平显示模块由LED驱动芯片和LED显示模块组成;所述控制接口模块由微控制器及用户按键组成。 1, the present invention is a power module, a display driving module, a liquid crystal display module, an audio amplifier module and the audio level display module, the interface control module; the power module composed of a power converter chip and external components; the said display driving module by a video conversion chip and the liquid crystal drive chips; a TFT liquid crystal display module of the liquid crystal display panel and the driving units; amplifying the audio by the audio amplifier chip module, a speaker, a headphone composition; the audio level display display module by the LED driver chips and LED modules; the control interface module and a user key by the microcontroller composition. 电源模块为整机提供+9V,+5V,+3.3V,+2.5V等直流供电;控制接口模块接受用户指令,将指令传给显示驱动模块;显示驱动模块接受外部输入的视频信号Video Signal,根据控制接口模块的指令,将其转换为适合液晶显示模块显示的数字RGB信号,与同步时钟信号一同提供给液晶显示模块;液晶显示模块接受显示驱动模块的信号,将其在液晶显示面板上显示;音频放大模块接受外部输入音频信号Audio Signal(L+R双声道立体声),由音频放大芯片放大后在内置扬声器或外接的耳机上重放;音频电平显示模块接受外部输入音频信号Audio Signal(L+R双声道立体声),将其电平及动态变化情况通过LED显示。 The whole power module provides + 9V, + 5V, + 3.3V, + 2.5V DC power supply and the like; a control interface module accepts a user instruction, the instruction passed to the display driving module; display driving module receiving an external input video signal Video Signal, and the instruction from the control interface module, convert it to a suitable liquid crystal display module displays the digital RGB signals, and the synchronizing clock signal with the liquid crystal display module; LCD signal module receiving a display driving module, which is in the liquid crystal display panel ; module receiving an external audio amplifier input audio signal audio signal (L + R channel stereo), reproduced on a built-in speaker or an external headset amplified by the audio amplifier chip; audio level display module receiving an external input audio signal audio signal (L + R channel stereo), and its dynamic changes level through the LED display.

本实用新型中音频电平显示模块的电路原理如下:如图2所示,本实用新型中音频电平显示模块由驱动模块和显示模块组成。 In the present invention, the audio level display circuit module principle is as follows: 2, in the present invention by the audio level display module and a display module driver module. 显示模块为十级LED显示,30分贝的动态范围,3分贝/级,由LED1~LED10组成,它们分别与驱动芯片LM3915的相应输出端相连接,其中LED1~LED5采用绿色LED,LED6~LED8采用黄色LED,LED9~LED10采用红色LED,这十个LED在监视器上设置成竖向或横向条状排列,驱动芯片LM3915接受外部输入的音频信号,并与自身产生的参考电压比较,驱动显示模块使其显示条状光条,用于显示音频电平的高低及变化。 The display module as ten LED display 30 dB dynamic range, 3 db / level, the LED1 ~ LED10, which are respectively connected to the corresponding output terminal of driver IC LM3915, wherein LED1 ~ LED5 using green LED, LED6 ~ LED8 using yellow LED, LED9 ~ LED10 LED with red, ten LED strips arranged transversely or vertically arranged on the monitor, the audio signal driving chip LM3915 receiving an external input, and compared with a reference voltage generated by itself, to drive the display module to display strip-shaped strip, and changes in the level of the audio level for displaying. 由于声音分左右声道,因此音频电平显示模块分为两组。 Since the left and right sound channels, the audio level display module thus divided into two groups. 电阻R1、R2、RP1组成基准电压电路,用于调节参考电压(VREF),其数学关系为:VREF=1.25V(1+RBRA)+RB×80μA.]]>输入信号VIN(RMS值)=VREF时为0Db,此时十级LED显示全亮。 Resistors R1, R2, RP1 composition of the reference voltage circuit for adjusting the reference voltage (the VREF), the mathematical relationship:. VREF = 1.25V (1 + RBRA) + RB & times; 80 & mu; A]]> input signal VIN (RMS value ) = VREF is when 0Db, this time ten full bright LED display. 输入信号(RMS值)与LED显示情况的对应关系如下表所示 Input signal (RMS value) corresponding to the case where the relationship of the display shown in the following table and the LED

所述的驱动电路也可为LCD或VFD驱动集成电路,相应地,所述的显示电路为与LCD或VFD驱动集成电路输出端连接的LCD或VFD显示器件。 The drive circuit may be an LCD or VFD driving integrated circuits, respectively, of the display circuitry of the display device is an LCD or VFD or LCD connected to the output of the VFD driving integrated circuit.

在本实用新型中,除音频电平显示模块外其他模块同原监视器。 In the present invention, in addition to displaying the audio level of the original module with other modules monitor.

Claims (7)

  1. 1.一种液晶监视器,它包括:一控制接口模块,其输出端与显示驱动模块输入端相连接,用于接受用户指令,将指令传给显示驱动模块;一显示驱动模块,其输入端与控制接口模块输出端相连接,其输出端与液晶显示模块输入端相连接,用于接受外部输入的视频信号,并根据控制接口模块的指令将其转换为适合液晶显示模块显示的数字RGB信号,与同步时钟信号一同提供给液晶显示模块;一液晶显示模块,其输入端与显示驱动模块输出端相连接,用于接受显示驱动模块的信号,将其在液晶显示面板上显示;一电源模块,与上述各模块相连接,用于为整机电路提供电源;其特征在于,它还包括一音频电平显示模块,其电源输入端与电源模块相连接,用于接受外部输入的音频信号并显示电平及其动态变化状态。 1. A liquid crystal monitor, comprising: a control interface module, an output coupled to the display driving module connected to the input, for receiving a user instruction, the instruction passed to the display driving module; a display driving module, an input terminal output terminal connected to the control interface module, the output terminal of the liquid crystal display module is connected to the input for receiving an external input video signal, and according to an instruction of the control interface module adapted to convert the liquid crystal display module to display the digital RGB signals , together with the synchronization clock signal to the liquid crystal display module; a liquid crystal display module having an input terminal connected to the output display driving module, for receiving a signal of the display driving module, in which the liquid crystal display panel; a power module , each connected to said means for providing power to the whole circuit; characterized in that it further comprises an audio level display module, a power supply input which is connected to the power supply module, an external input for receiving an audio signal and levels and dynamic changes display state.
  2. 2.如权利要求1所述的液晶监视器,其特征在于,它还包括一音频放大模块,其输入端与控制接口模块输出端相连接,用于接受外部输入音频信号,放大后在内置扬声器或外接的耳机上重放。 2. The liquid crystal monitor as claimed in claim 1 in the built-in speaker amplified claims, characterized in that it further includes an audio amplification module, having an input terminal connected to the output control interface module, an input for receiving an external audio signal, or playback on an external headset.
  3. 3.如权利要求1或2所述的液晶监视器,其特征在于,所述的音频电平显示模块由驱动电路和显示电路组成,显示电路与驱动电路输出端相连接,驱动电路接有基准电压电路。 3. A reference liquid crystal monitor of claim 1 or claim 2, wherein the audio level display module by the driving circuit and display circuit, a display circuit connected to the output of the driving circuit, the driving circuit connected voltage circuit.
  4. 4.如权利要求3所述的液晶监视器,其特征在于,所述的驱动电路为LED驱动集成电路,所述的显示电路为分别与LED驱动集成电路不同输出端连接的若干LED。 The liquid crystal monitor according to claim 3, characterized in that said driving integrated circuits for the LED driving circuit, display circuit and the LED driving respectively a plurality of LED integrated circuit connected to different outputs.
  5. 5.如权利要求4所述的液晶监视器,其特征在于,所述的LED有LED1~LED10十个,其中LED1~LED5采用绿色LED,LED6~LED8采用黄色LED,LED9~LED10采用红色LED。 The liquid crystal monitor according to claim 4, wherein said LED has ten LED1 ~ LED10, wherein LED1 ~ LED5 using green LED, LED6 ~ LED8 in yellow LED, LED9 ~ LED10 LED in red.
  6. 6.如权利要求3所述的液晶监视器,其特征在于,所述的驱动电路为LCD或VFD驱动集成电路,所述的显示电路为与LCD或VFD驱动集成电路输出端连接的LCD或VFD显示器件。 The liquid crystal monitor according to claim 3, wherein said driving circuit is an LCD or VFD driver IC, the display circuit is connected as an LCD or VFD and VFD or LCD driving integrated circuit output terminal display device.
  7. 7.如权利要求3所述的液晶监视器,其特征在于,所述的基准电压电路的基准电压可调。 The liquid crystal monitor according to claim 3, characterized in that the reference voltage of the reference voltage circuit is adjustable.
CN 200620031158 2006-08-21 2006-08-21 Liquid-crystal monitor CN200997685Y (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102063879A (en) * 2009-11-12 2011-05-18 三星移动显示器株式会社 Liquid crystal display with dynamic backlight control and its drive method
CN103763498A (en) * 2014-01-24 2014-04-30 深圳市影歌科技有限公司 HDMI signal processing system and method
CN106060659A (en) * 2016-05-30 2016-10-26 广州华多网络科技有限公司 Audio signal monitoring method, device and system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102063879A (en) * 2009-11-12 2011-05-18 三星移动显示器株式会社 Liquid crystal display with dynamic backlight control and its drive method
US8817056B2 (en) 2009-11-12 2014-08-26 Samsung Display Co., Ltd. Liquid crystal display with dynamic backlight control
CN103763498A (en) * 2014-01-24 2014-04-30 深圳市影歌科技有限公司 HDMI signal processing system and method
CN103763498B (en) * 2014-01-24 2017-08-01 深圳市影歌科技有限公司 Hdmi signal processing system and processing method
CN106060659A (en) * 2016-05-30 2016-10-26 广州华多网络科技有限公司 Audio signal monitoring method, device and system

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