視頻監(jiān)控顯示器在工業(yè)、生活及軍事領(lǐng)域都有廣泛應(yīng)用。本文設(shè)計(jì)了一種可在TFT液晶屏上顯示的視頻監(jiān)控顯示器，以內(nèi)嵌8051單片機(jī)的TFT液晶縮放引擎芯片為控制中心，以視頻轉(zhuǎn)換芯片TVP5150為硬件核心。電路將模擬視頻信號(hào)編碼為ITU-R BT.656類型的數(shù)據(jù)流。單片機(jī)管理整個(gè)工作流程，縮放引擎芯片進(jìn)行圖像處理，把數(shù)據(jù)流轉(zhuǎn)換為低電壓差分信號(hào)，最終在液晶屏上獲得監(jiān)控圖像。該顯示器結(jié)構(gòu)輕薄，電路簡(jiǎn)單，性能可靠，圖像顯示清晰穩(wěn)定。

Abstract:

?The video surveillance monitor has a wide application in industry， daily life and military. This article designed a type of video monitor which could display pictures on the TFT LCD. The design used a TFT SCALER IC which embedded an 8051 MCU core as the control center and used a video conversion IC TVP5150 as the hardware core. The circuit converted the analog video signal into data stream of ITU-R BT.656 type. The MCU managed the whole working process， and the SCALER achieved the image processing. Then the data steam were converted into LVDS， finally the surveillance images were displayed on the TFT LCD. The monitor has the feature of light and thin structure， simple and reliable circuit， and the clear and stable images.