新型AC PDP介質(zhì)保護層制備與性能研究
發(fā)布時間：2018-07-13 09:25
【摘要】：等離子體顯示器(Plasma display panel,PDP)具有亮度高、色彩還原度好、灰度豐富、對動態(tài)畫面響應(yīng)速度高、抗電場和磁場能力強、厚度薄等優(yōu)點。直到本世紀初,PDP一直被認為是最有希望取代傳統(tǒng)CRT(Cathode ray tube)顯示器的平板顯示技術(shù)之一。但是,目前PDP在商用平板顯示器市場的份額呈下降趨勢。究其原因,過高的驅(qū)動電壓導致其功耗和成本偏高。研究發(fā)現(xiàn),改善放電單元介質(zhì)保護層的放電特性是降低交流等離子體顯示器(Alternating current plasma display panel,AC PDP)驅(qū)動電壓的有效方法。本論文以交流等離子體顯示器的介質(zhì)保護層為研究對象,在不增加成本和工藝復雜度的前提下,以降低器件功耗為目標,系統(tǒng)研究四種新型介質(zhì)保護層的制備方法及放電性能。其中,Zn、Sn共摻雜MgO/MgO、LaB6/MgO和MgO-LaB6/MgO的雙層膜結(jié)構(gòu)和工藝為本論文的主要創(chuàng)新點。論文的主要研究內(nèi)容包括:1.采用第一性原理方法分別計算了Al摻雜MgO和Zn、Sn共摻雜MgO材料的能帶結(jié)構(gòu),利用Hagstrum理論計算了基于俄歇中和與俄歇去激過程的二次電子發(fā)射系數(shù)。計算結(jié)果表明,這兩種摻雜方案均能有效降低MgO的禁帶寬度,提高材料的二次電子發(fā)射系數(shù)。因此,采用這兩種摻雜材料作為AC PDP介質(zhì)保護層從理論上可以有效降低器件的放電電壓。2.自行設(shè)計并搭建了AC PDP面向放電測試系統(tǒng)。該系統(tǒng)包括驅(qū)動電源、真空系統(tǒng)、充放氣模塊、放電單元矩陣四個部分,可模擬AC PDP的工作環(huán)境,用于對論文所制備的新型介質(zhì)保護層進行放電性能測試,驗證新型AC PDP介質(zhì)保護層的可行性。3.采用水熱法制備了Al摻雜MgO粉末,并旋涂在AC PDP商用前基板(有MgO介質(zhì)保護層)上構(gòu)成Al摻雜MgO/MgO雙層介質(zhì)保護層結(jié)構(gòu)�？疾炝朔磻�(yīng)時間、反應(yīng)溫度、溶液填充度、尿素用量、Al摻雜量五個因素對Al摻雜MgO粉末形貌、晶向結(jié)構(gòu)的影響。結(jié)果表明,以AC PDP的實際使用條件(10%Xe-Ne,400torr)為例,該介質(zhì)保護層相對于傳統(tǒng)MgO介質(zhì)保護層的最小著火電壓降低了11.2%、最大著火電壓降低了14.8%、最大維持電壓降低了18.2%、最小維持電壓降低了4.2%、放電延遲時間降低了15.8%。4.提出共沉淀法制備Zn、Sn共摻雜MgO粉末,并采用旋涂法在AC PDP商用前基板上制備了Zn、Sn共摻雜MgO/MgO雙層介質(zhì)保護層結(jié)構(gòu)。結(jié)果表明,按優(yōu)化工藝參數(shù)制備出的Zn、Sn共摻雜MgO晶粒尺寸為納米量級,晶向以MgO(110),(111)為主。在上述工藝條件下制備的Zn、Sn共摻雜MgO/MgO雙層介質(zhì)保護層的放電電壓和放電延遲時間都獲得了降低。在10%Xe-Ne,400 torr條件下,該介質(zhì)保護層相對于傳統(tǒng)MgO介質(zhì)保護層的最小著火電壓降低了3.6%、最大著火電壓降低了13.2%、最大維持電壓降低了11.7%、最小維持電壓降低了12.5%、放電延遲時間降低了33.1%。5.提出絲網(wǎng)印刷方法在AC PDP商用前基板上制備了多晶LaB6不連續(xù)膜,形成LaB6/MgO雙層介質(zhì)保護層結(jié)構(gòu),利用LaB6的低逸出功特性,補充AC PDP放電所需的初始電子�？疾炝私z網(wǎng)目數(shù)、球磨、LaB6含量、燒結(jié)溫度四個因素對薄膜形貌、晶體結(jié)構(gòu)、透過率和放電性能的影響。放電測試結(jié)果表明,在10%Xe-Ne,400 torr條件下,該介質(zhì)保護層相對于傳統(tǒng)MgO單層介質(zhì)保護層的最小著火電壓降低了4.6%、放電延遲時間降低了15.1%。6.提出射頻磁控濺射在AC PDP商用前基板上制備了LaB6摻雜MgO薄膜,形成MgO-LaB6/MgO雙層保護層結(jié)構(gòu)�？疾炝藶R射功率、靶材中LaB6/LaB6+MgO的質(zhì)量比對薄膜形貌、晶體結(jié)構(gòu)、透過率以及放電性能的影響。放電測試結(jié)果表明,在10%Xe-Ne,400 torr條件下,該介質(zhì)保護層相對于傳統(tǒng)MgO介質(zhì)保護層的最小著火電壓降低了29.6%、最大著火電壓降低了27.3%、最大維持電壓降低了31%、最小維持電壓降低了33%、放電延遲時間降低了14.1%。比較上述四種方案,MgO-LaB6/MgO雙層介質(zhì)保護層結(jié)構(gòu)在降低AC PDP放電電壓、提高放電效率方面的優(yōu)勢最為明顯。
[Abstract]:Plasma display panel (PDP) has the advantages of high brightness, good color reduction, rich grayscale, high response to dynamic picture, strong ability to resist electric field and magnetic field, and thin thickness. Until the beginning of this century, PDP has always been considered as one of the most promising flat display techniques to replace the traditional CRT (Cathode ray tube) display. At present, the share of PDP in the commercial flat display market is declining. The reason is that the high driving voltage leads to high power and cost. It is found that improving the discharge characteristics of the dielectric protection layer of the discharge unit is to reduce the driving voltage of the Alternating current plasma display panel, AC PDP. In this paper, the dielectric protection layer of AC plasma display is taken as the research object. In order to reduce the power consumption of devices without increasing cost and process complexity, the preparation methods and discharge performance of four new media protection layers are systematically studied. Among them, Zn, Sn Co doped MgO/MgO, LaB6/MgO and MgO-LaB6/MgO double layer films The main innovation of this paper is the structure and process. The main contents of this paper are as follows: 1. the band structure of Al doped MgO and Zn, Sn Co doped MgO material was calculated by the first principle method, and the electron emission coefficient based on auger neutralization and auger deactivation was calculated by Hagstrum theory. The results showed that the two The doping scheme can effectively reduce the band gap of MgO and improve the two electron emission coefficient of the material. Therefore, using these two kinds of doped materials as the protective layer of the AC PDP medium can effectively reduce the discharge voltage of the device and build the AC PDP discharge testing system. The system includes the driving power supply and the vacuum system. System, charging and releasing module, discharge unit matrix four parts, can simulate the working environment of AC PDP, test the discharge performance of the new medium protection layer prepared by the paper, verify the feasibility of the new AC PDP medium protection layer,.3. using the hydrothermal method to prepare the Al doped MgO powder and spin it on the AC PDP commercial front substrate (with MgO medium protection). The layer structure is composed of Al doped MgO/MgO double layer medium protection layer. The effects of five factors, reaction time, reaction temperature, solution filling degree, urea dosage and Al doping amount on the morphology of Al doped MgO powder and crystal structure are investigated. The results show that the medium protection layer is compared with the traditional MgO medium with the actual use conditions of AC PDP (10% Xe-Ne, 400torr). The minimum ignition voltage of the protective layer is reduced by 11.2%, the maximum ignition voltage is reduced by 14.8%, the maximum maintenance voltage is reduced by 18.2%, the minimum maintenance voltage is reduced by 4.2%, the discharge delay time is reduced by 15.8%.4. and the Co doped MgO powder is prepared by the co precipitation method, and the Zn is prepared on the AC PDP substrate by the spin coating method, and Sn Co doped Mg is used. O/MgO double layer medium protective layer structure. The results show that the Zn, Sn Co doped MgO grain size is nanoscale, crystal direction is MgO (110), (111). The discharge voltage and discharge delay time of Sn Co doped MgO/MgO double layer medium protection layer are reduced in Zn, Sn Co doped MgO/MgO double layer medium protection layer. In 10%Xe-Ne, 400 Under Torr conditions, the minimum ignition voltage of the dielectric protection layer is 3.6% lower than that of the traditional MgO medium protection layer, the maximum ignition voltage is reduced by 13.2%, the maximum maintenance voltage is reduced by 11.7%, the minimum maintenance voltage is reduced by 12.5%, the discharge delay time is reduced by 33.1%.5., and the wire mesh printing method is prepared on the AC PDP pre commercial substrate. Crystal LaB6 discontinuous film, forming a protective layer structure of LaB6/MgO double layer medium, using the low work energy characteristics of LaB6, supplemented the initial electrons required by AC PDP discharge. The effects of four factors on the morphology, crystal structure, transmission and discharge performance of the film mesh, ball milling, LaB6 content and sintering temperature were investigated. The discharge test results showed that in 10%Xe-Ne, 4 Under the condition of 00 Torr, the minimum ignition voltage of the dielectric protection layer is 4.6% lower than that of the traditional MgO single layer medium protection layer. The delay time of the discharge is reduced by 15.1%.6.. The LaB6 doped MgO film is prepared on the AC PDP substrate by the RF magnetron sputtering, and the structure of the MgO-LaB6/MgO double layer protection layer is formed. The sputtering power and the LaB6 in the target are investigated. The effect of the mass ratio of /LaB6+MgO on the film morphology, crystal structure, transmittance and discharge performance. The discharge test results show that under the condition of 10%Xe-Ne and 400 Torr, the minimum ignition voltage of the dielectric protection layer is 29.6% lower than the traditional MgO medium protection layer, the maximum ignition voltage is reduced by 27.3%, the maximum maintenance voltage is reduced by 31%, and the minimum voltage is reduced. The maintenance voltage is reduced by 33%, the discharge delay time is reduced by 14.1%. and the above four schemes are compared. The MgO-LaB6/MgO double layer dielectric protection layer has the most obvious advantage in reducing the AC PDP discharge voltage and improving the discharge efficiency.
【學位授予單位】：電子科技大學
【學位級別】：博士
【學位授予年份】：2014
【分類號】：TN873.94
本文編號：2118906
[Abstract]:Plasma display panel (PDP) has the advantages of high brightness, good color reduction, rich grayscale, high response to dynamic picture, strong ability to resist electric field and magnetic field, and thin thickness. Until the beginning of this century, PDP has always been considered as one of the most promising flat display techniques to replace the traditional CRT (Cathode ray tube) display. At present, the share of PDP in the commercial flat display market is declining. The reason is that the high driving voltage leads to high power and cost. It is found that improving the discharge characteristics of the dielectric protection layer of the discharge unit is to reduce the driving voltage of the Alternating current plasma display panel, AC PDP. In this paper, the dielectric protection layer of AC plasma display is taken as the research object. In order to reduce the power consumption of devices without increasing cost and process complexity, the preparation methods and discharge performance of four new media protection layers are systematically studied. Among them, Zn, Sn Co doped MgO/MgO, LaB6/MgO and MgO-LaB6/MgO double layer films The main innovation of this paper is the structure and process. The main contents of this paper are as follows: 1. the band structure of Al doped MgO and Zn, Sn Co doped MgO material was calculated by the first principle method, and the electron emission coefficient based on auger neutralization and auger deactivation was calculated by Hagstrum theory. The results showed that the two The doping scheme can effectively reduce the band gap of MgO and improve the two electron emission coefficient of the material. Therefore, using these two kinds of doped materials as the protective layer of the AC PDP medium can effectively reduce the discharge voltage of the device and build the AC PDP discharge testing system. The system includes the driving power supply and the vacuum system. System, charging and releasing module, discharge unit matrix four parts, can simulate the working environment of AC PDP, test the discharge performance of the new medium protection layer prepared by the paper, verify the feasibility of the new AC PDP medium protection layer,.3. using the hydrothermal method to prepare the Al doped MgO powder and spin it on the AC PDP commercial front substrate (with MgO medium protection). The layer structure is composed of Al doped MgO/MgO double layer medium protection layer. The effects of five factors, reaction time, reaction temperature, solution filling degree, urea dosage and Al doping amount on the morphology of Al doped MgO powder and crystal structure are investigated. The results show that the medium protection layer is compared with the traditional MgO medium with the actual use conditions of AC PDP (10% Xe-Ne, 400torr). The minimum ignition voltage of the protective layer is reduced by 11.2%, the maximum ignition voltage is reduced by 14.8%, the maximum maintenance voltage is reduced by 18.2%, the minimum maintenance voltage is reduced by 4.2%, the discharge delay time is reduced by 15.8%.4. and the Co doped MgO powder is prepared by the co precipitation method, and the Zn is prepared on the AC PDP substrate by the spin coating method, and Sn Co doped Mg is used. O/MgO double layer medium protective layer structure. The results show that the Zn, Sn Co doped MgO grain size is nanoscale, crystal direction is MgO (110), (111). The discharge voltage and discharge delay time of Sn Co doped MgO/MgO double layer medium protection layer are reduced in Zn, Sn Co doped MgO/MgO double layer medium protection layer. In 10%Xe-Ne, 400 Under Torr conditions, the minimum ignition voltage of the dielectric protection layer is 3.6% lower than that of the traditional MgO medium protection layer, the maximum ignition voltage is reduced by 13.2%, the maximum maintenance voltage is reduced by 11.7%, the minimum maintenance voltage is reduced by 12.5%, the discharge delay time is reduced by 33.1%.5., and the wire mesh printing method is prepared on the AC PDP pre commercial substrate. Crystal LaB6 discontinuous film, forming a protective layer structure of LaB6/MgO double layer medium, using the low work energy characteristics of LaB6, supplemented the initial electrons required by AC PDP discharge. The effects of four factors on the morphology, crystal structure, transmission and discharge performance of the film mesh, ball milling, LaB6 content and sintering temperature were investigated. The discharge test results showed that in 10%Xe-Ne, 4 Under the condition of 00 Torr, the minimum ignition voltage of the dielectric protection layer is 4.6% lower than that of the traditional MgO single layer medium protection layer. The delay time of the discharge is reduced by 15.1%.6.. The LaB6 doped MgO film is prepared on the AC PDP substrate by the RF magnetron sputtering, and the structure of the MgO-LaB6/MgO double layer protection layer is formed. The sputtering power and the LaB6 in the target are investigated. The effect of the mass ratio of /LaB6+MgO on the film morphology, crystal structure, transmittance and discharge performance. The discharge test results show that under the condition of 10%Xe-Ne and 400 Torr, the minimum ignition voltage of the dielectric protection layer is 29.6% lower than the traditional MgO medium protection layer, the maximum ignition voltage is reduced by 27.3%, the maximum maintenance voltage is reduced by 31%, and the minimum voltage is reduced. The maintenance voltage is reduced by 33%, the discharge delay time is reduced by 14.1%. and the above four schemes are compared. The MgO-LaB6/MgO double layer dielectric protection layer has the most obvious advantage in reducing the AC PDP discharge voltage and improving the discharge efficiency.
【學位授予單位】：電子科技大學
【學位級別】：博士
【學位授予年份】：2014
【分類號】：TN873.94
【參考文獻】
相關(guān)期刊論文 前2條
1 王小菊;林祖?zhèn)?祁康成;陳澤祥;汪志剛;蔣亞東;;電化學刻蝕法制備LaB_6場發(fā)射微尖錐陣列[J];發(fā)光學報;2007年03期
2 王琰;張佳;張曉光;王守國;韓秀峰;;MgO單晶勢壘磁性隧道結(jié)的第一性原理計算和實驗研究[J];物理學進展;2009年04期
，本文編號：2118906
本文鏈接：http://sikaile.net/kejilunwen/wltx/2118906.html
最近更新
教材專著
