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This paper presents an energy recovery (ER) circuit which can operate either in a series or a parallel resonance mode and can drive an AC plasma display panel (PDP) with a single sustain circuit board. The proposed ER circuit consists of one energy storage capacitor, two energy recovery inductors, and three insulated-gate bipolar transistors. The circuit operations in the series and parallel resonance...
Based on experimental observation and theoretical analysis, it explicates that light emission of a carbon nanotube-field emission display (CNT-FED) is mainly caused by electron bombardment on the phosphour if the level of vacuum ranges from 10 −4 to 5Pa. In this case, light emission of the phosphour excited by ultraviolet (UV) light derived from gas discharge cannot be observed. If vacuum...
The use of computers is constantly increasing. At the same time the population of the industrialised world is aging. In this study we investigated the speed with which users of different ages can find a specific computer icon from a group of others. Our results show that search performance slows with age when calculated across all three levels of inter-icon spacing (χ 2 (4)=14.904, p<.05)...
A new type of white organic light-emitting device has been fabricated incorporating a single light-emitting layer of bis(2-methyl-8-quinolinolato) (para-phenylphenolato) aluminum (III) (BAlq) doped with 2,5,8,11-tetra-tert-butylperylene (TBPe) and 5,6,11,12-tetraphenyl-naphthacene (rubrene). The configuration of the device was ITO/PVK:TPD/BAlq:TBPe:rubrene/Alq 3 /Mg:Ag. By adjusting the proportion...
Organic light-emitting diodes (OLEDs) with multiple hole-trapping-layer (HTL) structures, which consist of N,N′-bis-(1-naphthyl)-N, N′-diphenyl-1,1′-biphenyl 4,4′-diamine (NPB), bathocuproine (BCP) and tris(8-hydroxy-quinoline)aluminum (Alq 3 ) have been fabricated. The emitting zone of the device with the structure of ITO/[NPB/BCP] n /Alq 3 /LiF/Al can be changed by the number...
Recently, various wide color gamut displays have been developed. Because of color gamut differences between wide gamut displays and the standard definitions, the color reproduction on such display system is not equal to original images. To overcome this, a color transformation such as gamut mapping algorithm is applied in conventional systems. But this manipulates only the video signal that would...
A triply doped white organic light emitting diode with red and blue dyes in the light emitting layer and a green dye in another layer is proposed. The device structure was CuPc(12nm)/NPB(40nm)/ADN:DCJTB(0.2%):TBPe(1%)(50nm)/Alq:C545(0.5%)(12nm)/LiF(4nm)/Al. Here copper phthalocyanine (CuPc) is a buffer layer, N,N′-di(naphthalene-1-y1)-N,N′-dipheyl-benzidine (NPB) is a hole transporting layer, 9,10-di-(2-naphthyl)...
By the integrated drive circuitry with laser crystallization process, the gate and data driver circuits required for full color WVGA(800×RGB×480) LCD are integrated on panel. The integrated driver comprises a sequential analog sampling data driver and a dual logic gate scanner for redundancy. The characteristics and uniformities of the LTPS (low temperature polycrystalline silicon) devices have been...
The purpose of this study was to investigate the effects of presentation method and presentation rate on reading a dynamic presentation of Chinese text on a single-line display. A novel presentation concept that Chinese word as a presentation unit was examined. Twenty-four subjects completed 12 experimental treatments composed of four presentation methods (i.e., leading format with conventional layout...
A non-doped-type structure was proposed for obtaining organic light-emitting devices with high-efficiency and full-spectrum white light emission. The device structure included indium tin oxide glass substrate/450Å 4,4′,4″-tris{N-(3-methylphenyl)-N-phenylamin}triphenylamine (m-MTDATA) hole injection layer/100Å N,N′-bis-(1-naphthyl)-N,N′-diphenyl-1,1′-biph-enyl-4,4′-diamine (NPB) hole transport layer/150Å...
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