Сhemiluminescent display

Investigation of organic liquid phase electroluminescence (traditionally, the so-called “electro-chemiluminescence” or “electrogenerated chemiluminescence”) is of special interest as a competitor for “liquid” and “solid” organic light emitted diodes (OLEDs). From the electrochemical point of view, chemiluminescence is a selfregenerating process providing high brightness light radiation due to recombination of oppositely charged dye radicals. Chemiluminescent displays have a competitive set of parameters: high light efficiency, low power consumption, low driving voltages, fast response time, high spatial resolution, very high optical transmission and wide operation temperature range. No polarizers or alignment layers are required. Samples of chemiluminescent displays, including matrix microdisplays and micromechanically made cells are available; its design and parameters are discussed in details. Theoretical and experimental investigations of thin film DC chemiluminescence phenomena are carried out. On the basis of obtained experimental results, the most important physical processes have been investigated: charge injection into solution and charge transfer by electrohydrodynamic flows. Further prospects of chemiluminescent display devices are discussed

Self-organized nanostructured anodic oxides for display applications

Electrochemical technologies have a high potential for display applications because of their cheapness and simplicity, easiness to scaling to large substrates and lowtemperature nature. However, in major display technologies the oxide films should be deposited on transparent conductive substrate, usually ITO on glass. For dielectric substrates like glasses, a special technology of current control is applied to anodizing metal films, which changes the oxide porous structure in a final stage and prevents formation of metal islands. To transform the residual metal nanowires into oxide, a special fading process similar to anoding bonding can be done. Usually, high reactivity electrolytes are used in the anodizing process, which destroys ITO layers. We have analyzed chemical properties of ITO in various anodizing electrolytes and found some suitable reagents and compositions. A lot of functional layers can be created by anodizing. For example, different filters may be formed by filling the pores by ink jet printing. Porous oxides can have low refractive indexes – lower than any bulk material, and can be used as effective antireflective coatings. A titanium oxide cover film forms “self-cleaning” surface due to its semiconductor photonics properties and oxygen production

СТРУКТУРА, МОРФОЛОГИЯ И ЭЛЕКТРОФИЗИЧЕСКИЕ СВОЙСТВА ПРОЗРАЧНЫХ НАНОСЕТЧАТЫХ ПЛЕНОК АЛЮМИНИЯ

Nanomeshy aluminum film is the promising alternative to a tin-doped indium oxide film (ITO) as transparent conductive electrodes. In this paper we describe the fabrication of a nanomeshy aluminum film by electrochemical anodization of aluminum deposited by magnetron sputtering on a glass substrate. The process of anodization is strictly controlled by the characteristic changes of process parameters, followed by selective chemical etching of aluminum oxide. We proposed the model for a nanomeshy Al film and calculated numerically the dependences of their optical transmittance and surface resistance on the characteristic dimensions of the network structure. The proposed method allows fabricating the uniform and stable nanomeshy aluminum film with transparency up to 80% with less than 50 Ohm/ð resistance.Впервые разработана, теоретически обоснована и экспериментально подтверждена концепция использования наносетчатых пленок алюминия в качестве прозрачных проводящих покрытий. Предлагаемый метод позволяет формировать однородные по площади наносетчатые пленки алюминия с прозрачностью до 85% и эффективным поверхностным сопротивлением менее 50 Ом/ð

ПАССИВНО-МАТРИЧНЫЕ МИКРОДИСПЛЕИ СВЕТОИЗЛУЧАЮЩЕГО ТИПА

The construction, technology and main features of passive matrix light emitting microdisplays based on reverse biesed Schottki diodes with the structure of nanoporous Silicon-Aluminium are described.Описаны конструкция, технология и основные параметры пассивно-матричного микродисплея светоизлучающего типа на основе Шоттки-структуры нанопористый кремний/алюминий для персональных видеопроекционных систем с улучшенными потребительскими свойствами. Контроль их функционирования осуществлялся визуально с помощью специально разработанных методики и программно-аппаратного комплекса, включающего генератор испытательных сигналов в виде набора тестовых полей и программного обеспечения, установленного на персональном компьютере с операционной системой Windows XP

МЕТОДИКА И ПРОГРАММНО-АППАРАТНЫЙ КОМПЛЕКС ФУНКЦИОНАЛЬНОГО КОНТРОЛЯ МИКРОДИСПЛЕЙНОГО МОДУЛЯ ВИДЕОПРОЕКЦИОННОГО УСТРОЙСТВА ПЕРСОНАЛЬНОГО ТИПА

The hard- and software functional control method of microdisplay modules for personal videoprojection systems is presented. The basic components comprise of an active matrix SVGA LCOS microdisplay or a LED microdisplay based on Schottky diodes nanoporous silicon- nanostructured aluminium, a Video Pattern Generator VPG 170 which generates test images with different parameters and characteristics. It’s included also the specialized optical system containing a polarizing cube with antiglare coatings and RGB backlit system. The control of the generator test signals is accomplished using a specially developed software installed in a PC using Windows XP operating system.Представлены методика и программно-аппаратный комплекс функционального контроля микродисплейного модуля видеопроекционного устройства персонального типа. Основным звеном комплекса является формирователь видеоизображения (генератор испытательных сигналов) Video Pattern Generator VPG 170, который позволяет создавать тестовые поля изображений с различными параметрами и характеристиками. В качестве микродисплейного модуля использовали либо активно-матричный SVGA микродисплей, выполненный по LCOS-технологии, либо тестовый модуль светоизлучающего типа на основе Шоттки структуры нанопористый кремний/Al, контроль функционирования которых осуществляется визуально. Разработана специальная оптическая система, включающая поляризационный куб с антиотражающими и антибликовыми покрытиями, светодиодную подсветку по RGB составляющим, управляемую контроллером. Управление генератором испытательных сигналов VPG 170 осуществляется с помощью специально разработанного программного обеспечения, установленного на персональном компьютере с операционной системой Windows XP

Image Formation by Ink-Jet Printing in Micro- and Nanoporous Anodic Alumina Film with Capsulating

The image formation process based on the method of ink-jet printing in films of anodic aluminum oxide has been developed and investigated. The image resolution of 500 dpi was achieved on the films with 150 μm depth of pores. The films of anodic aluminum oxide were produced on aluminum foil by partial or through anodizing of aluminum followed by filling the pores with ink and their capsulation for protection. The obtained films have exceptional thermal and chemical stability. The low-temperature and low-cost process described in this article is promising for mass production of elements of microelectronic devices

Image Formation by Ink-Jet Printing in Micro- and Nanoporous Anodic Alumina Film with Capsulating

The image formation process based on the method of ink-jet printing in films of anodic aluminum oxide has been developed and investigated. The image resolution of 500 dpi was achieved on the films with 150 μm depth of pores. The films of anodic aluminum oxide were produced on aluminum foil by partial or through anodizing of aluminum followed by filling the pores with ink and their capsulation for protection. The obtained films have exceptional thermal and chemical stability. The low-temperature and low-cost process described in this article is promising for mass production of elements of microelectronic devices

Passive matrix light emiting microdisplays

The construction, technology and main features of passive matrix light emitting microdisplays based on reverse biesed Schottki diodes with the structure of nanoporous Silicon-Aluminium are described

Transparent conductive coatings made by electrochemical and physicochemical methods

New methods of transparent conductive electrodes fabrication are presented. The electrochemical anodization of aluminum is a key component for methods to make metal electrodes. It allows to produce the holey aluminum electrode (method 1) and holey alumina mask as a pattern for metal electrode deposition with its further transferring to adhesive substrate (method 2). The 80% average transmission for range 300-1000nm and 10-20Ω/□ sheet resistance is achieved. Electroconductive films made of organosilicon compounds are investigated too. © 2013 Society for Information Display

HARD/SOFTWARE FUNCTIONAL CONTROL METHOD OF MICRODISPLAY MODULES FOR PERSONAL VIDEO-PROJECTION SYSTEMS

The hard- and software functional control method of microdisplay modules for personal videoprojection systems is presented. The basic components comprise of an active matrix SVGA LCOS microdisplay or a LED microdisplay based on Schottky diodes nanoporous silicon- nanostructured aluminium, a Video Pattern Generator VPG 170 which generates test images with different parameters and characteristics. It’s included also the specialized optical system containing a polarizing cube with antiglare coatings and RGB backlit system. The control of the generator test signals is accomplished using a specially developed software installed in a PC using Windows XP operating system