基于感光浆料法等离子显示器障壁制作中活性单体的选择

等离子显示器(PDP)障壁制作是显示器制作的关键环节,障壁不仅起到分隔放电单元的作用,而且可以防止相邻放电单元之间的光串扰和电串扰。感光浆料法是目前较为理想的一种障壁制作方法,通过一次涂布,干燥,曝光,显影,烧结,即可得到高精度的障壁图案。本文根据感光浆料的应用要求,选择多种可用于制备PDP障壁结构的活性单体,通过傅立叶实时红外光谱比较了单体的双键转化率,利用体积收缩的正交试验方法,确定了单体组分的最优比例。     

等离子显示器障壁玻璃的研究进展

介绍了等离子显示器(PDP)障壁材料,对近年来障壁材料所采用的几种基础玻璃系统的优缺点进行了对比,着重介绍了无铅玻璃系统并提出新的障壁材料的基础玻璃系统。     

显影对PS版性能的影响

阳图PS版感光层中的感光树脂经曝光发生光分解反应后,感光层可被显影液溶解形成稳定的亲水空白部分;而未曝光的感光层显影后仍留在印版上,具有亲油性而构成图像部分,这样就形成可上机印刷的印版.印版从胶辊上接受油墨而转印到纸张等承印物上,就制成了印刷品.     

一种新型光敏成像体系－HCF－LPR－Hox的研制和应用

研制了一种新型光敏成像体系ＬＰＲ－ＨＣＦ－Ｈｏｘ，从理论上探讨了感光主体ＨＣＦ的光反应性，确定了体系的组成、比例、涂布用量等工艺条件，选择了曝光显影条件，测定了体系的感光特性曲线。这种体系不仅具有良好的亲油性、成膜性和光固化性，而且曝光灵敏度高，分辨率也较好，具有一定的开发应用价值。     

一种新型光敏成像体系—HCF—LPR—Hox的研制和应用

研制了一种新型光敏成象体系ＬＰＲ－ＨＣＦ－Ｈｏｘ，从理论上探讨了感光主体ＨＣＦ的光反应性，确定了体系的组成，比例，涂布用量等工艺条件，选择了曝光显影条件，测定了体系的感光特性曲线。这种体系不仅具有良好的亲油性、成膜性和光固化性，而且曝光灵敏度高，分辨率也较好，具有一定的开发应用价值。     

二茂铁系光敏成像体系研制

研制了一种新型光敏成像体系（ＨＬＨ），其感光主组分为二茂铁衍生物（ＨＣＦ），载体为线性酚醛树脂（ＬＰＲ），并用８ 羟基喹啉（Ｈｏｘ）作为配体提高曝光灵敏度，确定本体系的最佳工艺条件为：感光组分的比例（质量比）为ＨＣＦ∶ＬＰＲ∶Ｈｏｘ＝２∶８∶１；曝光时间为３０ｍｉｎ；显影液为００５％ＮａＯＨ溶液，显影时间为３ｍｉｎ；最后测定了感光特性曲线。这种体系不仅具有良好的亲油性、成膜性和光固化性，而且曝光灵敏度高，分辨率也较好，具有一定的应用开发价值     

阳图PS版感光液的发展状况

自1985年以来,我国的印刷业一直保持着持续和稳定的增长,其总产值以平均每年12％～15％的速度递增。基本与世界印刷业发展速度同步。但是从感光液的质量来看,普通产品多,优质产品少,国内的感光液大部分是采用重氮萘醌-酚醛树脂体系。为了提高感光液的质量,应加强对耐碱性、曝光宽容度、光分解碱溶性、显影宽容度以及涂布适应性的研究。     

LCD印刷用柔性树脂版及其制备方法

<正>本发明涉及一种液晶(LCD)印刷用柔性树脂版及其制备方法,LCD印刷用柔性树脂版的感光弹性体层组成为:热塑性弹性体、增塑剂、光交联的乙烯基不饱和单体、光引发剂及其光引发体系、染料及其他添加剂。该体系曝光时间合适、回弹好、版材网点还原精细。     

空心阴极N2等离子体放电光源实现普通PS版感光

本文利用直流空心阴极放电方式产生了一种新型氮气等离子体蓝紫光源,实现了针对传统的预涂感光版(PS版)的感光,当N2气压70 Pa、放电电压580 V、电流1.8 A时,产生的蓝紫光功率密度为0.46 mW/cm2.本文进一步从曝光前后颜色密度值变化、感光材料红外分析方面,对PS版的曝光效果做了详细的测量.     

提高显影选择性增力口影像密度

通过在显影液中综合应用有机和无机添加剂,影响显影剂的活性和含潜影卤化银微晶的性质,可使医用X射线胶片和黑白胶卷已曝光和未曝光卤化银之间的催化还原速度差别增大若干倍.研究这一效应的本质表明,影像密度的提高是由于在传统显影液中不显影的小尺寸潜影中心的卤化银微晶也加入到照相显影过程之中的结果,它导致感光涂层的曝光区银量增加.根据研究结果,在医疗机构进行了应用试验,用于医用X射线胶片的加工,由于影像密度的增加,可显著降低X射线的照射剂量.     

Photosensitive barrier rib paste for plasma display panel and photolithographic process

Barrier ribs in color plasma display panels (PDPs) function to maintain the discharge space between two glass plates as well as to prevent optical crosstalk. Patterning of barrier ribs is one of the unique processes for making PDPs. In this work, photosensitive barrier rib pastes were prepared by incorporating binder polymer, solvent, functional monomers, photoinitiator, and barrier rib powder. Studies of the function of the materials for the barrier rib paste were undertaken. After optimization of the paste formulation and photolithographic process, the barrier rib could be obtained with good resolution up to 110–120 μm height and 80–90 μm width. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 2092–2099, 2002     

Physical Properties of Barrier Ribs of Plasma Display Panels: II, Effects of Fillers

The effects of inert fillers, such as quartz and Al₂O₃, on the sintering behavior and physical properties of lead borosilicate glasses used for barrier ribs of plasma display panels (PDP) were investigated. The effects of volume fraction and type of filler on the sintering temperature, thermal expansion coefficient, dielectric constant, and fracture resistance of the barrier ribs of PDP were investigated. The influence of the filler on sintering behavior was discussed based on the wetting angle of the glass on the fillers. The physical properties and fracture resistance of the glass with fillers were measured and compared with theoretical models.     

Physical Properties of Barrier Ribs of Plasma Display Panels: I, Formation of Pores during Sintering of Lead Borosilicate Glass Frits

The effects of chemical compositions on the sintering behavior and physical properties of lead borosilicate glass developed for barrier ribs of plasma display panels (PDP) were investigated. The formation of pores during sintering of the glass was noted, and their formation mechanism was investigated using XPS, TG/DTA, and XRD. A change in the oxidation state of the lead was discussed as a possible cause for the formation of pores in the sintered samples.     

Formation of Barrier Ribs for Plasma Display Panels via a Powder-Blasting Process: Part I, Effects of Binder Content and Baking Treatment

The powder-blasting characteristics of a thick film prepared using a tape-casting process have been investigated. The powder-blasting process is commonly used in the manufacturing of barrier ribs of plasma display panels. The effects of binder content and baking temperature on the powder-blasting rate of the thick film have been studied. The rates observed are discussed based on the volume fraction of the pores and the degradation of binder during the baking treatment. In addition, the effect of powder-blasting resistance of thick film on the morphology of barrier ribs formed is examined.     

Effects of the Addition of Different Types of Fillers on the Properties of BaO–ZnO–B2O3–SiO2 Glass Composites for Application to Barrier Ribs of Plasma Display Panels

Various types of crystalline ceramic fillers (TiO₂, ZrO₂, Al₂O₃, MgO, and cordierite) were added to BaO–ZnO–B₂O₃–SiO₂ (BZBS) glass (5–20 wt%), and the resultant dielectric constant, coefficient of thermal expansion (CTE), and optical reflectance were investigated for the application of the composites to the barrier ribs in plasma display panels. All the investigated fillers were partially dissolved into the glass at the fabrication temperature (575°C), and the residual fillers were aligned along the boundaries of sintered glass frits. By considering all aspects of the properties, the addition of TiO₂ fillers of about 10 wt% to BZBS glass was the most desirable of the types of fillers investigated. The addition of TiO₂ filler (10 wt%) yielded 61% in optical reflectance, 8.3 × 10⁻⁶ K^–1 in coefficient of thermal expansion, and 15.5 in dielectric constant, which were properties comparable with the currently used Pb-based barrier ribs.     

Dielectric Constant and Optical Reflectance of Ceramic Filler-Added BaO–ZnO–B2O3–P2O5 Glass Composites

This study examined the influence of the addition of ceramic fillers (up to 20 wt% of TiO₂, Al₂O₃, and ZnO, respectively) to a BaO–ZnO–B₂O₃–P₂O₅ glass matrix on the dielectric and optical properties with the aim of using this material as the barrier ribs in plasma display panels. The modification of the dielectric constant by the fillers was related to the formation of secondary phases, the changes in the glass composition by the partial dissolution of the fillers, and the presence of pores. The reflectance of the composites ranged from 60% to 80% with the addition of 20 wt% filler.     

Formation of Barrier Ribs for Plasma Display Panels via Powder-Blasting Process: Part II, Effects of Powder-Blasting Angle

The effects of powder-blasting angle on the powder-blasting rate of a thick film prepared using a tape-casting technique were investigated. The results revealed that the etching rate was sensitive to the angle of powder blasting. The mechanism of this dependency was discussed based on brittle fracture and erosion caused by the powders blasted on the surface of the film. In addition, a new processing route for barrier ribs for plasma display panels was attempted, using the sensitive dependency of the etching characteristics on the powder-blasting angle. It was demonstrated that the ribs could be processed successfully using layers having different etching rates.     

Co-Additions of TiO2 and SiO2 Crystalline Fillers to Tailor the Properties of BaO–ZnO–B2O3–SiO2 Glass for Application to Barrier Ribs of Plasma Display Panels

The influence of co-additions of crystalline TiO₂ and SiO₂ fillers (10 wt% addition in total) to BaO–ZnO–B₂O₃–SiO₂ glass on resultant properties was investigated from the viewpoint of applying the material to the barrier ribs of plasma display panels. The substitution of SiO₂ for TiO₂ reduced the dielectric constant significantly, while it maintained high optical reflectance and appropriate coefficient of thermal expansion (CTE) in the case when TiO₂ alone was used. A 5–7.5 wt% SiO₂ addition with 2.5–5 wt% TiO₂ under the constraint of 10 wt% total fillers demonstrated an optical reflectance of about 55%, a CTE of about 8.3 × 10⁻⁶ K⁻¹ (compatible with glass panels), and a dielectric constant of about 7.5, which are promising properties for the barrier rib application.     

Microtransfer Molding of Gelcasting Suspensions to Fabricate Barrier Ribs for Plasma Display Panel

We have developed a new fabrication technique for the barrier ribs of a plasma display panel (PDP). The rib structure was formed on a glass plate by microtransfer molding a gelcasting suspension with a flexible soft mold. A well–dispersed gelcasting suspension of the glass frit was placed on the photolithographically patterned mold, followed by gelation and drying while pressed with a top glass plate. The rib structure replicated by micromolding was significantly influenced by the gelation kinetics, the green strength of the gelled body, and the mold release process. It was demonstrated that the box–type array of 1176 wells in the patterned area of 6.5 cm × 6.5 cm could be produced using the current method.