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Flat-panel display technologies

01 Jan 1995-
About: The article was published on 1995-01-01 and is currently open access. It has received 9 citations till now. The article focuses on the topics: Flat panel display.
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Journal ArticleDOI
25 Feb 1999-Displays
TL;DR: In this article, the authors compared the suitability of liquid crystal display (LCD) and cathode ray tube (CRT) display for visual tasks and found that LCD display had better viewing conditions in comparison to CRT display.

69 citations

Journal ArticleDOI
15 Aug 2011
TL;DR: The alignment behavior of nematic liquid crystal, 5CB on the PHEMA#C films could be correlated with the molecular structure and wettability of the polymers.
Abstract: Poly(2-hydroxyethyl methacrylate) derivatives with amphiphilic side chains composed of polar ester and non-polar alkyl groups (PHEMA#C, #=9, 11, 13, 15, and 17), where # is the number of carbon atoms in the alkyl side groups, were synthesized. In this paper, the influence of ester and alkyl groups on the molecular structure and wettability of the polymers were studied through varying # in the alkyl side groups. PHEMA#Cs with relatively longer alkyl side groups (#≥15) show bilayer lamellar structures with well aligned side chains giving rise to the very low surface energies, calculated from advancing contact angles, in the range of 22.7-22.8 mN/m. In contrast, PHEMA#Cs with shorter alkyl side groups with #≤13 have disordered structures on the polymer surfaces and stick-slip behavior was observed when water was used as the test liquid for the advancing contact angle measurements. Furthermore, the alignment behavior of nematic liquid crystal, 5CB on the PHEMA#C films could be correlated with the molecular structure and wettability of the polymers.

13 citations

Journal ArticleDOI
TL;DR: In this paper, an organic solvent-soluble photosensitive polyimide (PSPI) bearing a cinnamate photoreactive moiety in its side group was synthesized, and the photochemical reactions of the PSPI in the films were investigated in detail using both UV-vis and IR spectroscopy.

12 citations

Journal ArticleDOI
TL;DR: In this article, a photoreactive polyimide (PSI) was synthesized and the photochemical reactions of the PSPI in the films were investigated by UV-Vis and IR spectroscopies; the cinnamate chromophores were confirmed to undergo photodimerization.
Abstract: A photoreactive polyimide, bearing a cinnamate photoreactive moiety in its side group, was synthesized. The photochemical reactions of the PSPI in the films were investigated in detail by UV-Vis and IR spectroscopies; the cinnamate chromophores were confirmed to undergo photodimerization. Linearly polarized ultra-violet light irradiation induced anisotropic reorientations of both the polymer main chains and the side groups in the film. The PSPI thin films were found to have unidirectional orientation ability as a result of photo-exposure with linearly polarized ultraviolet light, with the photoaligned polymer chains in the PSPI films able to effectively induce the alignment of nematic liquid crystals.

6 citations

01 Jan 2011
TL;DR: In this paper, the authors used mist deposition patterning to create multiple color quantum dot light emitting diodes on a single substrate, and tested the brightness and spectrum of each color, and showed promising results.
Abstract: The quantum dot has many applications, one of which is the light emitting diode. Quantum dot light emitting diodes were fabricated for their use in display technologies. The quantum dot light emitting diodes had to be optimized to achieve maximum brightness, as well as have the ability to pattern the devices for the use of multiple color quantum dot light emitting diodes on the same substrate. After the patterning and optimization of the quantum dot light emitting diode an addressing system is needed to create a display. In this study mist deposition patterning is used to create multiple color quantum dot light emitting diodes on a single substrate. The structure is then packaged using techniques outlined in this article to prevent oxygen and moisture damage. The brightness and spectrum of each color was then tested, and showed promising results. The multiple devices are then powered via passive matrix addressing device which utilizes a National Instruments FET switching matrix to create an array similar to a display. The results of this testing show it is possible to create a multi-colored quantum dot array using mist deposition and passive addressing.

3 citations