【摘要】：微顯示技術(shù)是新興的顯示技術(shù)，它的出現(xiàn)極大的方便了工業(yè)產(chǎn)品的設(shè)計，減少了顯示器的空間占有體積，降低了便攜產(chǎn)品的功耗，延長了設(shè)備的使用續(xù)航時間，在軍用及民用產(chǎn)業(yè)中都有著非常廣泛的應(yīng)用。因此，對微型顯示技術(shù)的研究就有著廣泛的現(xiàn)實意義和商業(yè)價值。 隨著有機(jī)發(fā)光技術(shù)的興起，近幾年來硅基有機(jī)發(fā)光二極管微顯示器也開始逐漸成為業(yè)內(nèi)研究的熱點，但這項技術(shù)目前尚處于積累階段，各項關(guān)鍵技術(shù)大都被發(fā)達(dá)國家所壟斷。本文把硅基有機(jī)發(fā)光二極管微顯示器的驅(qū)動技術(shù)作為研究對象，對像素驅(qū)動電路、掃描驅(qū)動控制等技術(shù)進(jìn)行了研究，提出了一套切實可行的驅(qū)動方法。論文的工作主要有以下幾方面： (1)分析了微顯示技術(shù)的發(fā)展現(xiàn)狀，介紹了有機(jī)發(fā)光二極管顯示技術(shù)，并根據(jù)實驗室制備的OLED器件的測試數(shù)據(jù)，使用Matlab工具進(jìn)行模型函數(shù)的擬合，求得擬合參數(shù)并采用Verilog-A語言建立了OLED的仿真模型，經(jīng)仿真該模型能準(zhǔn)確反映OLED的V-I特性。此方法提供了一種快速、簡便建立OLED模型的途徑。 (2)對硅基有機(jī)發(fā)光二極管的像素驅(qū)動電路進(jìn)行了詳細(xì)的分析，討論了電壓型和電流型的像素補(bǔ)償電路，最終采用靜態(tài)存儲電路作為OLED-on-Silicon像素驅(qū)動電路，并設(shè)計了包括數(shù)據(jù)存儲電路和電壓驅(qū)動電路在內(nèi)的像素電路，給出了詳細(xì)的晶體管尺寸設(shè)計步驟和仿真數(shù)據(jù)。從穩(wěn)定性、速度與面積等角度進(jìn)行了分析，確定了像素單元驅(qū)動電路晶體管的尺寸。 (3)介紹了現(xiàn)有的掃描策略的實現(xiàn)原理，定義了三種掃描矩陣，定性地對比分析了各種策略的優(yōu)點和不足，最終采用線性權(quán)值按位掃描子空間劃分策略，并給出了具體的劃分方案算法，提高了掃描利用率。 (4)詳細(xì)介紹了基于遺傳算法的權(quán)值掃描矩陣搜索策略，設(shè)計了兩種編碼方式和罰函數(shù)應(yīng)用于搜索高灰度級的權(quán)值掃描矩陣，并通過實驗驗證可搜索出滿足要求的256級權(quán)值掃描矩陣。 (5)給出了硅基有機(jī)發(fā)光二極管微顯示器的設(shè)計方案，包括像素區(qū)域、行、列控制模塊以及掃描驅(qū)動模塊的設(shè)計方案。開發(fā)了一款基于SMIC0.35μm2P4M工藝下的硅基芯片，芯片總面積為26.20mm×21.36mm，微顯示器的分辨率為1024×1280×3、灰度等級為256級。測試結(jié)果表明，，其發(fā)光亮度可以基本滿足人眼直接觀看的要求。
[Abstract]:Microdisplay technology is a new display technology, which greatly facilitates the design of industrial products, reduces the volume of display space, reduces the power consumption of portable products, and prolongs the service life of the equipment. It is widely used in military and civil industries. Therefore, the research of micro display technology has a wide range of practical significance and commercial value. With the rise of organic light-emitting technology, silicon based organic light-emitting diode microdisplays have gradually become the focus of research in recent years, but this technology is still in the accumulation stage, and the key technologies are mostly monopolized by developed countries. In this paper, the driving technology of silicon based organic light-emitting diode (OLED) microdisplay is studied. The pixel driving circuit and scanning driving control are studied, and a set of feasible driving methods are proposed. The main work of this paper is as follows: (1) the development status of microdisplay technology is analyzed, the organic light-emitting diode display technology is introduced, and according to the test data of OLED devices prepared in the laboratory, The fitting parameters are obtained by using Matlab tool and the simulation model of OLED is established by using Verilog-A language. The simulation model can accurately reflect the V-I characteristics of OLED. This method provides a fast and simple way to establish OLED model. (2) the pixel driving circuit of silicon based organic light-emitting diode is analyzed in detail, and the pixel compensation circuit of voltage mode and current mode is discussed. Finally, the static storage circuit is used as the OLED-on-Silicon pixel driving circuit. The pixel circuit including data storage circuit and voltage drive circuit is designed, and the detailed design steps of transistor size and simulation data are given. The stability, speed and area of the transistor are analyzed, and the size of the pixel unit driving circuit transistor is determined. (3) the realization principle of the existing scanning strategy is introduced, three scanning matrices are defined, the advantages and disadvantages of these strategies are analyzed qualitatively and qualitatively, and finally, the linear weighted bit-scan subspace partition strategy is adopted. The specific partition algorithm is given to improve the scanning efficiency. (4) the search strategy of weighted scan matrix based on genetic algorithm is introduced in detail, and two encoding methods and penalty function are designed to search the weight scan matrix of high gray level. The 256 order weight scan matrix can be searched by experiment. (5) the design scheme of silicon based organic light emitting diode (OLED) microdisplay is presented, including pixel area, row, column control module and scan drive module. A silicon chip based on SMIC0.35 渭 m2P4M technology is developed. The total area of the chip is 26.20mm 脳 21.36mm, the resolution of microdisplay is 1024 脳 1280 脳 3, and the gray level is 256-level. The test results show that the luminance can basically meet the requirement of direct viewing by human eyes.
【學(xué)位授予單位】：上海大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2014
【分類號】：TN873

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳文彬,成建波;無源OLED顯示屏亮度均勻性研究[J];半導(dǎo)體光電;2005年03期

2 王文博;王曉慧;黃苒;歐毅;杜寰;夏洋;韓鄭生;馮亞云;凌志華;;LCoS平板微顯示驅(qū)動技術(shù)研究[J];半導(dǎo)體光電;2009年01期

3 孟志國;郭海成;吳春亞;王文;熊紹珍;;125mm彩色AMOLED的多晶硅TFT基板[J];半導(dǎo)體學(xué)報;2006年08期

4 黃苒;王曉慧;王文博;杜寰;韓鄭生;;Design of a 16 gray scales 320×240 pixels OLED-on-silicon driving circuit[J];半導(dǎo)體學(xué)報;2009年01期

5 趙博華;黃苒;馬飛;謝國華;張振松;杜寰;羅家俊;趙毅;;The realization of an SVGA OLED-on-silicon microdisplay driving circuit[J];半導(dǎo)體學(xué)報;2012年03期

6 嚴(yán)利民;王念;;基于遺傳算法搜索高灰度級FPD掃描矩陣的研究[J];電視技術(shù);2011年03期

7 路繩立;OLED技術(shù)現(xiàn)狀與在消費(fèi)電子市場發(fā)展動態(tài)[J];電子產(chǎn)品世界;2005年13期

8 謝莉;王永;;基于改善AMOLED TFT均勻性和穩(wěn)定性像素補(bǔ)償電路[J];電子科技;2010年12期

9 王宇,朱為,堵國良,史小軍;LED顯示屏實現(xiàn)高質(zhì)量圖像顯示的掃描算法分析[J];電子器件;2004年03期

10 沈匿;林祖?zhèn)?陳文彬;祁康成;王小菊;楊隆杰;;AMOLED像素電路的設(shè)計與仿真研究[J];電子器件;2011年05期

相關(guān)博士學(xué)位論文 前2條

1 陳章進(jìn);平板顯示器掃描模型與理論研究[D];上海大學(xué);2009年

2 季淵;超還原硅基有機(jī)發(fā)光微顯示器研究[D];上海大學(xué);2012年

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