本文選題：拼接顯示　切入點(diǎn)：OLED模塊　出處：《電子科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：在目前的信息社會(huì),對(duì)信息的顯示量的要求越來越高。拼接顯示可以解決對(duì)信息顯示的要求,主要包括LCD拼接、PDP拼接、LED拼接、LCD投影拼接和DLP拼接等。目前不少公司推出了OLED拼接屏,OLED具有陰極射線管(CRT)和LCD的綜合優(yōu)點(diǎn),是全固體化器件。它具有薄而輕、高亮度、溫度范圍寬、響應(yīng)速度快、視角寬、對(duì)比度高和驅(qū)動(dòng)電壓及功耗低等優(yōu)點(diǎn)。OLED被稱為第3代顯示器、21世紀(jì)的平板顯示,是LCD的升級(jí)更新產(chǎn)品。拼接顯示主要集中于中、大尺寸屏幕顯示,小尺寸的顯示屏拼接報(bào)道很少。研究OLED拼接顯示系統(tǒng)具有廣泛的工程應(yīng)用前景,基于科學(xué)研究需要,本文對(duì)小尺寸OLED的拼接設(shè)計(jì)進(jìn)行了探索研究。基于ARM7嵌入式系統(tǒng)芯片LPC2138,設(shè)計(jì)了OLED屏拼接顯示系統(tǒng),采用了4個(gè)2.8"全彩OLED模塊進(jìn)行拼接。系統(tǒng)基于ARM7系列的2片LPC2138為控制核心,分別各向2個(gè)OLED驅(qū)動(dòng)控制器S6E63D6提供時(shí)序控制信號(hào)和圖像數(shù)據(jù)信號(hào),從而實(shí)現(xiàn)4個(gè)OLED屏的全彩顯示。系統(tǒng)硬件采用模塊化設(shè)計(jì),包括OLED拼接屏母板電路和子板電路兩部分。OLED模塊如果有損壞,只需要通過更換子板,拼接系統(tǒng)即可正常工作。母板電路是系統(tǒng)的核心電路:包含電源、ARM晶振、JTAG、復(fù)位電路和外圍電路。母板電路以兩片LPC2138為核心,每片LPC2138驅(qū)動(dòng)兩個(gè)OLED屏,提供4個(gè)雙排插口給子板的4個(gè)OLED屏。子板電路包含四塊顯示屏的拼接接口電路和外圍電路,分別將4個(gè)S6E63D6的接口部信號(hào)引到4個(gè)雙排插口上,與母板對(duì)應(yīng)的4個(gè)雙排插口進(jìn)行連接實(shí)現(xiàn)電氣連接。系統(tǒng)軟件基于KeilμVision平臺(tái),采用C語言編程。軟件包括寫數(shù)據(jù)、寫命令、IC初始化、γ校正、單色顯示和全彩顯示等子程序。系統(tǒng)可實(shí)現(xiàn)4個(gè)2.8"的OLED屏的全彩拼接顯示,分辨率為480(RGB)×640,色彩65K,亮度200cd/m2。系統(tǒng)顯示接口采用MCU接口-間接控制方式,8080并行8位總線時(shí)序。
[Abstract]:In the current information society, the demand for the amount of information display is becoming higher and higher. Splicing display can solve the demand for information display. It mainly includes LCD splicing, LCD splicing, LCD splicing, LCD projection splicing, DLP splicing, etc. At present, many companies have introduced OLED splicing screen, which has the comprehensive advantages of cathode ray tube (CRT) and LCD, and is a fully solid device. It has thin, light, high brightness, and so on. Wide temperature range, fast response speed, wide angle of view, high contrast and low drive voltage and power consumption. OLED is called the third generation display panel display in the 21st century, and it is an upgraded and updated product of LCD. There are few reports of large screen display and small size display screen splicing. The research of OLED splicing display system has wide engineering application prospect, and is based on the need of scientific research. In this paper, the splicing design of small size OLED is studied. Based on ARM7 embedded system chip LPC2138, the OLED screen splicing display system is designed, and four 2.8 "full-color OLED modules are used for splicing. The system is based on two pieces of LPC2138 of ARM7 series as the control core. The timing control signal and image data signal are provided to two OLED drive controllers S6E63D6, respectively, so as to realize the full color display of four OLED screens. The hardware of the system is designed by modularization. OLED module if damaged, only need to replace the subboard by replacing the subboard, OLED module is composed of two parts: OLED splicing motherboard circuit and sub-board circuit. The mainboard circuit is the core circuit of the system, including power supply arm crystal oscillator JTAG, reset circuit and peripheral circuit. The motherboard circuit takes two LPC2138 as the core, and each LPC2138 drives two OLED screens. Four OLED screens with four double rows of sockets are provided. The sub-board circuit includes four spliced interface circuits of four display screens and peripheral circuits, which lead four S6E63D6 interface signals to four double-row sockets, respectively. The system software is based on Keil 渭 Vision platform and is programmed by C language. The software includes writing data, writing command IC initialization, 緯 correction, and so on. The system can realize the full color splicing display of 4 2.8 "OLED screens with a resolution of 480 OLED 脳 640, color 65K, brightness 200cd / m2. The system display interface adopts MCU interface-indirect control mode and 8080 parallel 8-bit bus timing.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN873

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相關(guān)碩士學(xué)位論文 前4條

1 楊光;小尺寸OLED拼接屏的設(shè)計(jì)與實(shí)現(xiàn)[D];電子科技大學(xué);2017年

2 余峰;低功耗自舉絕熱CMOS電路設(shè)計(jì)[D];寧波大學(xué);2017年

3 蔚俊剛;基于LPC2138的音頻傳輸系統(tǒng)設(shè)計(jì)[D];成都理工大學(xué);2012年

4 張亞偉;硅基光電器件的預(yù)加重電路研究[D];寧波大學(xué);2017年

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本文編號(hào)：1593629