Flat panel display prototype using low-voltage carbon field emitters

1995 ◽  
Vol 13 (2) ◽  
pp. 482 ◽  
Author(s):  
A. Y. Tcherepanov
Keyword(s):  
Low Voltage ◽  
Flat Panel Display ◽  
Flat Panel ◽  
Field Emitters

Flat panel display prototype using gated carbon nanotube field emitters

2001 ◽  
Vol 78 (9) ◽  
pp. 1294-1296 ◽  
Author(s):  
Q. H. Wang ◽  
M. Yan ◽  
R. P. H. Chang
Keyword(s):  
Carbon Nanotube ◽  
Flat Panel Display ◽  
Flat Panel ◽  
Field Emitters

Emission Properties of Nanostructured Carbon Field-Emission Cathodes

2001 ◽  
Vol 685 ◽  
Author(s):  
A.G Chakhovskoi ◽  
N.N Chubun ◽  
C.E. Hunt ◽  
A.N Obraztsov ◽  
A.P. Volkov
Keyword(s):  
Field Emission ◽  
Low Voltage ◽  
Flat Panel Display ◽  
Nanostructured Carbon ◽  
Applied Current ◽  
Flat Panel ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Field Emission Cathodes ◽  
Emission Cathode

AbstractPlanar field-emission cathode structures consisting of nanostructured carbon flakes have been investigated as an electron source for flat panel display application.Layers of nanoflakes were grown on silicon and molybdenum substrates using a high- temperature pyrolitic plasma-assisted CVD method. The result is a vertically oriented nanocluster layer of 1-2 micrometer height chemically bonded with the substrates. Additional orientation of the flakes, occurring during the first activation of the cathodes, was observed.Field emission properties of the emitters were studied in a vacuum chamber and in sealed flat-panel prototype devices with non-patterned low-voltage phosphor screens. Emitters with an area up to 1 square inch were tested under DC currents up to 100 microamps in diode mode. Anode bias up to 1.5 kV was applied. Current fluctuations of 1-2% were achieved using loading resistor.

scholarly journals Flat-panel electronic displays: a triumph of physics, chemistry and engineering

2010 ◽  
Vol 368 (1914) ◽  
pp. 1027-1082 ◽  
Author(s):  
Cyril Hilsum
Keyword(s):  
Low Voltage ◽  
Electrical Signal ◽  
Operating Voltage ◽  
Flat Panel Displays ◽  
Flat Panel Display ◽  
Transparent Conductor ◽  
Flat Panel ◽  
Silicon Thin Film ◽  
Cross Point ◽  
Electronic Displays

This paper describes the history and science behind the development of modern flat-panel displays, and assesses future trends. Electronic displays are an important feature of modern life. For many years the cathode ray tube, an engineering marvel, was universal, but its shape was cumbersome and its operating voltage too high. The need for a flat-panel display, working at a low voltage, became imperative, and much research has been applied to this need. Any versatile flat-panel display will exploit an electro-optical effect, a transparent conductor and an addressing system to deliver data locally. The first need is to convert an electrical signal into a visible change. Two methods are available, the first giving emission of light, the second modulating ambient illumination. The most useful light-emitting media are semiconductors, historically exploiting III–V or II–VI compounds, but more recently organic or polymer semiconductors. Another possible effect uses gas plasma discharges. The modulating, or subtractive, effects that have been studied include liquid crystals, electrophoresis, electrowetting and electrochromism. A transparent conductor makes it possible to apply a voltage to an extended area while observing the results. The design is a compromise, since the free electrons that carry current also absorb light. The first materials used were metals, but some semiconductors, when heavily doped, give a better balance, with high transmission for a low resistance. Delivering data unambiguously to a million or so picture elements across the display area is no easy task. The preferred solution is an amorphous silicon thin-film transistor deposited at each cross-point in an X – Y matrix. Success in these endeavours has led to many applications for flat-panel displays, including television, flexible displays, electronic paper, electronic books and advertising signs.

Piezoelectric/electroluminescent composites for low voltage input flat-panel display devices

2007 ◽  
Vol 90 (4) ◽  
pp. 729-731 ◽  
Author(s):  
Feifei Wang ◽  
Yanmin Jia ◽  
Jun Wu ◽  
Xiangyong Zhao ◽  
Haosu Luo
Keyword(s):  
Low Voltage ◽  
Flat Panel Display ◽  
Flat Panel ◽  
Display Devices

scholarly journals Optimal Color Lighting for Scanning Images of Flat Panel Display using Simplex Search

2018 ◽  
Vol 4 (11) ◽  
pp. 133
Author(s):  
HyungTae Kim ◽  
EungJoo Ha ◽  
KyungChan Jin ◽  
ByungWook Kim
Keyword(s):  
Image Quality ◽  
Light Source ◽  
Light Emitting Diode ◽  
Optical Filters ◽  
Flat Panel Display ◽  
Flat Panel ◽  
Light Emitting ◽  
Simplex Search ◽  
Inspection Systems ◽  
Color Control

A system for inspecting flat panel displays (FPDs) acquires scanning images using multiline charge-coupled device (CCD) cameras and industrial machine vision. Optical filters are currently installed in front of these inspection systems to obtain high-quality images. However, the combination of optical filters required is determined manually and by using empirical methods; this is referred to as passive color control. In this study, active color control is proposed for inspecting FPDs. This inspection scheme requires the scanning of images, which is achieved using a mixed color light source and a mixing algorithm. The light source utilizes high-power light emitting diodes (LEDs) of multiple colors and a communication port to dim their level. Mixed light illuminates an active-matrix organic light-emitting diode (AMOLED) panel after passing through a beam expander and after being shaped into a line beam. The image quality is then evaluated using the Tenenbaum gradient after intensity calibration of the scanning images. The dimming levels are determined using the simplex search method which maximizes the image quality. The color of the light was varied after every scan of an AMOLED panel, and the variation was iterated until the image quality approached a local maximization. The number of scans performed was less than 225, while the number of dimming level combinations was 20484. The proposed method can reduce manual tasks in setting-up inspection machines, and hence is useful for the inspection machines in FPD processes.

Inverters Using Only N-Type Indium Gallium Zinc Oxide Thin Film Transistors for Flat Panel Display Applications

2011 ◽  
Vol 50 (3) ◽  
pp. 03CB06 ◽  
Author(s):  
Tong-Hun Hwang ◽  
Ik-Seok Yang ◽  
Oh-Kyong Kwon ◽  
Min-Ki Ryu ◽  
Choon-Won Byun ◽  
...  
Keyword(s):  
Thin Film ◽  
Zinc Oxide ◽  
Thin Film Transistors ◽  
Oxide Thin Film ◽  
Indium Gallium Zinc Oxide ◽  
Flat Panel Display ◽  
Zinc Oxide Thin Film ◽  
Flat Panel ◽  
Indium Gallium
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