基于FPGA的全彩色LED同步顯示屏控制系統(tǒng)的設(shè)計(jì)
[Abstract]:As a high-tech product, LED display screen is attracting great attention. It has been widely used in advertising and securities because of its wide dynamic range, high brightness, long service life and stable working performance. Traffic, information release and so on, and with the development of full color display technology, LED display has a broad market prospect. The main research object of this paper is the full color LED synchronous display screen control system. A system implementation scheme is proposed. The whole system is composed of three parts: DVI decoding circuit. The sending system and the receiving system .DVI decoding module are used to obtain video source data from the DVI port of the video card. Decodes and recovers 24-bit pixel data and some control signals available for LED display. The sending system is used to cache the received data stream and send it to Ethernet chip for Ethernet transmission after processing. The receiving system receives the video data stream from Ethernet, after bit separation operation, it is stored in SRAM for cache, then serially input to the LED display screen for scanning display. Then, the feasibility of the scheme is discussed from many aspects, and the relation and constraint between the technical parameters of LED display screen are deduced carefully. This thesis uses programmable logic device to complete the system function. The programmable logic device has the characteristics of high integration, high speed and on-line programmable, which can not only meet the speed requirement of high speed image data processing, but also meet the requirement of high speed image data processing. Moreover, the flexibility of the design is increased, the circuit hardware design is not modified, the design cycle is shortened, and the on-line upgrade can be carried out.
【學(xué)位授予單位】:上海交通大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2008
【分類號(hào)】:TN873
【引證文獻(xiàn)】
相關(guān)期刊論文 前1條
1 林天勇;徐軍明;;同步LED系統(tǒng)數(shù)據(jù)采集與發(fā)送模塊設(shè)計(jì)[J];機(jī)電工程;2011年02期
相關(guān)碩士學(xué)位論文 前10條
1 徐繪峰;基于FPGA的LED視頻顯示屏控制系統(tǒng)的設(shè)計(jì)[D];武漢科技大學(xué);2010年
2 邱天琦;基于SPWM功能的LED恒流驅(qū)動(dòng)芯片[D];西安電子科技大學(xué);2011年
3 張倩;基于FPGA的高灰度級(jí)LED屏控制系統(tǒng)的設(shè)計(jì)與研究[D];山東師范大學(xué);2011年
4 王浩然;LED雙色屏及其控制系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)[D];杭州電子科技大學(xué);2011年
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7 李瑾;LED大屏幕顯示系統(tǒng)的視頻信息泄漏研究[D];西安電子科技大學(xué);2011年
8 鄧淳苗;基于SOPC的LED顯示屏控制系統(tǒng)的研究[D];河北大學(xué);2011年
9 劉九維;基于FPGA的大型戶外全彩色LED屏控制系統(tǒng)設(shè)計(jì)[D];重慶大學(xué);2011年
10 李超然;超高亮LED顯示屏的研發(fā)[D];東北師范大學(xué);2011年
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