Practical limits on addressing twisted nematic displays

1983 ◽  
Vol 309 (1507) ◽  
pp. 179-188 ◽  
Keyword(s):  
Low Power ◽  
Liquid Crystal Displays ◽  
Flat Panel Displays ◽  
Ambient Light ◽  
Portable Equipment ◽  
Flat Panel ◽  
Wide Range ◽  
Twisted Nematic ◽  
Twisted Nematic Liquid Crystal ◽  
High Information

Reflective twisted nematic liquid crystal displays have gained very wide user acceptance in consumer and professional applications. They are compact flat-panel displays with a very low power consumption, which modulate ambient light and as a result have very good legibility in a wide range of illumination conditions. There is a need for such low-power flat-panel displays with high information content as data displays for portable equipment. A number of problems must be overcome if twisted nematic displays are to be made complex enough for these applications. The most important factor determining the number of display elements that can be addressed is the viability of matrix-addressing techniques. This paper explores the limits in the number of lines that can be addressed for a display operating in reflexion.

Glass Substrates for Flat Panel Displays

MRS Bulletin ◽  
1996 ◽  
Vol 21 (3) ◽  
pp. 31-34 ◽  
Author(s):  
Dawne M. Moffatt
Keyword(s):  
Liquid Crystal ◽  
Information Content ◽  
Liquid Crystal Displays ◽  
Color Filter ◽  
Manufacturing Processes ◽  
Flat Panel Displays ◽  
Flat Panel ◽  
Glass Substrates ◽  
High Information Content ◽  
High Information

One material exists in most types of flat panel displays that are used in high information content applications, from liquid crystal displays to electroluminescent displays. This material is glass, something we all use daily. As a substrate, glass plays a significant role in the manufacture and function of flat panel displays (FPDs). In the case of active-matrix liquid crystal displays (AMLCDs), the semiconductor-based thin-film transistors (TFTs) or diodes are fabricated on the active glass substrate. In addition, AMLCDs require color-filter structures consisting of dyed or pigmented resins built upon the passive plate of an AMLCD cell. For plasma and electroluminescent display panels, the glass provides the surface upon which are deposited phosphors, conductive lines, and dielectrics.The excellent properties of glass make it the substrate of choice in FPDs. It is the only material that can meet the demanding requirements of high-information-content FPD manufacturing processes and operation. Glass' transparency is an obvious requirement. For all types of displays, the rigidity of glass also plays a important role because it adds overall mechanical integrity and strength.One of the most important attributes of glass in terms of the display manufacturing process is its thermal stability. Glass substrates, particularly those made of “hard” or high temperature glasses, can be processed at elevated temperatures with minimal deformation. In addition, the dimensional precision required in the alignment of various display components is maintained throughout the specific manufacturing processes.

Analytical Simulation of Electrooptical Performance of Multidomain Twisted Nematic Liquid Crystal Displays

1995 ◽  
Vol 34 (Part 1, No. 5A) ◽  
pp. 2396-2403 ◽  
Author(s):  
Takashi Sugiyama ◽  
Toru Hashimoto ◽  
Kazuhisa Katoh ◽  
Yasufumi Iimura ◽  
ShunsukeKobayashi
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Liquid Crystal Displays ◽  
Analytical Simulation ◽  
Twisted Nematic ◽  
Twisted Nematic Liquid Crystal
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